DESC:DESCRIPTION
Technical Field of the Invention

The present invention relates to the field of design and production technology particularly relates to manufacturing method and system for sub-machine guns of the ASMI COMPACT and ASMI-X models, both chambered in 9mm caliber but configured for different operational ranges and ergonomic profiles.

Background of the Invention

Sub-machine guns (SMGs) are compact firearms designed for close-quarters combat (CQC), offering high firepower, portability, and rapid target engagement. Traditional SMG manufacturing involves multiple fabrication stages, including barrel rifling, receiver machining, bolt assembly, and fire control integration. However, existing manufacturing methods face several limitations.

In conventional designs, material selection often prioritizes durability over weight optimization, leading to heavier components that negatively impact ergonomics and maneuverability. Excess weight can cause fatigue for users, reduce operational efficiency, and hinder performance in dynamic scenarios. As a result, there is a growing need for advanced material optimization techniques that strike a balance between structural integrity and reduced weight.

Precision engineering remains a challenge due to reliance on manual machining and outdated tooling methods. These traditional techniques frequently result in inconsistent tolerances, affecting the overall performance and reliability of components. Variability in machining accuracy can lead to misalignment, reduced compatibility with other parts, and the need for frequent re-calibration or replacement. Addressing these issues requires the integration of modern manufacturing technologies that ensure consistent precision and improved repeatability.
Production inefficiencies further exacerbate the problem, as conventional manufacturing processes lack automation and modular assembly. The absence of streamlined workflows leads to extended production times, increased labor costs, and potential bottlenecks in supply chains. Implementing automation, standardized modules, and lean manufacturing practices could significantly enhance productivity while reducing operational expenses.

Additionally, surface durability presents a critical concern, particularly in harsh operational environments where conventional coatings fail to provide sufficient corrosion resistance. Exposure to moisture, extreme temperatures, and abrasive conditions can deteriorate the surface quality, affecting performance and longevity. The development of advanced protective coatings and surface treatments is essential to improving resilience against wear, corrosion, and environmental degradation.

The present invention overcomes these limitations by introducing a streamlined manufacturing process with automated precision machining, advanced surface treatment techniques, and modular assembly systems.

This invention focuses on 100% indigenization of components, ergonomic design, reduced weight, concealability, fully automatic operation, precision engineering, modular assemblies, and efficient firearm production, ensuring reliability and adaptability for military and law enforcement applications.

Objects of the Invention

The primary objective of the present invention to develop a highly accurate, fully automatic firearm with low weight and concealability, and to develop a high-precision production system for the ASMI-COMPACT and ASMI-X submachine guns using advanced machining techniques to ensure consistent tolerances and superior firearm performance.
It is the objective of the present invention to utilize lightweight yet durable materials, such as aircraft-grade aluminum and reinforced polymers, to enhance ergonomics and maneuverability without compromising structural integrity.

It is an object of the invention to manufacture a fully automatic, 9x19mm caliber firearm system offering low weight, concealability, and enhanced precision, with the ASMI-COMPACT optimized for urban and CQB environments, and the ASMI-X configured for increased effective range up to 200 meters through an extended barrel and receiver.

It is an object of the invention to implement automation and modular assembly techniques to streamline manufacturing, reduce production time, and lower overall costs.

It is an object of the invention to apply advanced surface treatments, such as nitriding, phosphate coating, anodizing, and finishes, to enhance corrosion and wear resistance, thereby extending the firearm's lifespan.

It is an object of the invention to engineer a robust bolt and firing mechanism assembly to ensure smooth cycling, minimal malfunctions, and improved reliability under diverse operational conditions.

It is an object of the invention to develop adjustable and user-friendly components to enhance comfort, control, and handling for both left- and right-handed users.

It is an object of the invention to establish a comprehensive quality control and testing framework, including dimensional accuracy checks, functional validation, and live-fire testing, to ensure firearm consistency and reliability.

It is an object of the invention to develop a digital twin traceability system linking each weapon unit’s serial number to its design, material batch, test results, and lifecycle history for both ASMI-COMPACT and ASMI-X models.

It is a further object of the invention to establish a rigorous quality control framework including dimensional inspection, environmental testing, drop and impact simulation, and live-fire validation, to meet or exceed military and international performance standards.

It is an object of the invention to promote material utilization efficiency, waste minimization, and eco-friendly coating methods in the manufacturing workflow of both firearm variants.
Brief Summary of the Invention

The following provides a simplified summary of the disclosure to offer a basic understanding. This summary is not an exhaustive overview and does not identify the key or critical elements of the invention, nor does it delineate its scope. Its sole purpose is to present some of the concepts disclosed herein in a simplified form, serving as a prelude to the more detailed description that follows.

The present invention relates to an advanced method of manufacturing a compact sub-machine gun, specifically the ASMI - COMPACT and ASMI-X, with a focus on structural optimization, precision engineering, and lifecycle traceability. In one aspect of the invention, a multi-phase manufacturing method is disclosed that encompasses design and development, material selection, precision machining, modular assembly, surface finishing, testing, and distribution. Each phase is configured to integrate modern engineering practices with efficiency and scalability.

In another aspect of the invention, the manufacturing method employs a strategic combination of high-strength metals and high-impact polymers to reduce the overall weight of the firearm to approximately weight without compromising structural integrity or operational reliability. The ASMI-COMPACT achieves a target weight of approximately 2.0 kilograms, while the ASMI-X, featuring an extended barrel and receiver, maintains a weight under 2.5 kilograms with enhanced effective range up to 200 meters.

A further aspect of the invention includes the application of adaptive, closed-loop CNC machining and EDM-based fabrication techniques. The system utilizes real-time sensor data is utilized to dynamically adjust toolpath and spindle speed during barrel rifling, receiver machining, and bolt fabrication, ensuring dimensional accuracy and minimizing material waste for both firearm models.

In yet another aspect of the invention, the assembly process is modular, allowing for rapid integration of pre-assembled fire control groups, interchangeable stocks, ergonomic grips, and ambidextrous selectors. This design simplifies production, streamlines field maintenance, and supports customization based on operational requirements across both ASMI variants.

In a related aspect, the surface finishing phase comprises the application of protective treatments such as phosphate coating for steel and Type III hard anodizing for aluminum, validated through salt spray and environmental exposure tests to meet military durability standards. Each firearm is laser-engraved with a unique serial number and linked to its CAD-based digital twin or full traceability throughout its lifecycle.

Additionally, the invention encompasses a robust quality control and testing framework. Live-fire assessments, dimensional inspections, drop tests, and environmental stress tests are conducted to ensure compliance with performance standards. Final packaging incorporates serialized, corrosion-inhibiting materials for secure transport and long-term storage.

Through these aspects, the present invention offers a significant advancement over conventional firearm manufacturing systems by integrating weight optimization, process automation, modularity, and digital lifecycle tracking into a unified, high-precision production method applicable to both ASMI-COMPACT and ASMI-X models.

Further scope of applicability of the present invention will become apparent from the detailed description given hereinafter. However, the detailed description and specific examples, while indicating preferred embodiments of the invention, will be given by way of illustration along with complete specification.

Brief Summary of the Drawings

The invention will now be described with reference to the accompanying drawings, which illustrate the preferred embodiments of the invention. These drawings are intended to assist in understanding the invention and should not be construed as limiting in any way. The various components, process stages, and subassemblies shown therein correspond to reference numerals used throughout the specification and claims.

FIG. 1 illustrates a systematic block diagram representing the overall manufacturing system (100) for the ASMI - COMPACT sub-machine gun. The diagram delineates the sequential phases of the process including design and development (1), material selection and procurement (2), precision machining and fabrication (3), assembly and integration (4), quality control and testing (5), surface finishing and final marking (6), and packaging and distribution (7).

FIG. 2 illustrates the stepwise manufacturing method (200) for producing the ASMI - COMPACT sub-machine gun. It outlines component-level manufacturing steps in sequential order, namely: barrel component processing (21), receiver machining (22), mechanism sub assembly (23), trigger unit integration (24), structural module attachment (25), surface preparation and coating (26), and final assembly validation and inspection (27).

FIG. 3 illustrates a modular block representation of the subassemblies used in the ASMI - COMPACT firearm. The diagram shows labeled units and components including the barrel unit (102), motion actuation module (101a), recoil element (101b), control group assembly (101c), feed module (101d), in parallel with lower body (204), springs (205), trigger mechanism (206), magazine body (207) each identified by their corresponding reference numerals.

It will be appreciated that the drawings are schematic and not to scale, and that certain components or features may have been exaggerated or simplified for illustrative clarity.

Detailed Description of the Invention

The present disclosure emphasizes that its application is not limited to the specific details of construction and component arrangement as illustrated in the drawings. It is adaptable to various embodiments and implementations. The phraseology and terminology used should be regarded as descriptive rather than limiting.

The terms "including," "comprising," or "having" and variations thereof are meant to encompass listed items and their equivalents, as well as additional items. The terms "a" and "an" do not denote quantity limitations but signify the presence of at least one of the referenced items. Terms like "first," "second," and "third" are used to distinguish elements without implying order, quantity, or importance.

According to an exemplary embodiment of the present invention, a structured and modular method is disclosed for manufacturing a lightweight and compact sub-machine guns are the ASMI-COMPACT and the ASMI-X each engineered with enhanced precision, reliability, and traceability.
The process begins with a design and development phase that incorporates requirements analysis, CAD-based structural modeling, and finite element simulations (FEA) to optimize geometry, load-bearing features, and recoil management, and thermal dissipation across both models. While the ASMI-COMPACT is optimized for compactness and concealability, the ASMI-X features an extended barrel and receiver to improve ballistic efficiency and effective range, supporting mission requirements of up to 200 meters.

The material selection phase involves choosing high-performance alloys and engineered polymers. Chrome-molybdenum steel is preferred for components requiring high strength and thermal resistance, such as the barrel and bolt assembly. Aircraft-grade aluminum is used for structural sections where weight reduction is paramount without compromising dimensional stability. For ergonomic and non-load-bearing modules, such as the grip and lower housing. High-impact reinforced polymers are used in ergonomic and non-load-bearing components such as the grip, magazine housing, and lower receiver to enhance comfort and reduce overall mass. The ASMI-COMPACT achieves a target weight of approximately 2.0 kg, while the ASMI-X, with its extended structure, remains under 2.5 kg.

In the precision machining and fabrication phase, multi-axis CNC machines are employed to machine receiver blocks, upper frame elements, and fire control components to fine tolerances. A closed-loop adaptive control system is integrated into the CNC workflow using real-time thermal and vibration feedback to dynamically adjust toolpath, spindle torque, and feed rate. The ASMI-X receiver and barrel machining sequences are extended to accommodate the 2-inch increase in length, ensuring structural compatibility without compromising tolerance consistency.

Rifling of the barrels is performed through either cold hammer forging or button rifling, followed by heat treatment and internal coating using chrome or nitride for enhanced wear resistance and thermal stability. The ASMI-X barrel, while longer, undergoes identical treatment to ensure equivalent service life and ballistic accuracy.

The assembly and integration phase adopts a modular design approach. Pre-fabricated and independently tested subassemblies such as the bolt carrier group, trigger mechanism (206), and magazine housing are assembled with the structural frame using alignment pins and embedded fasteners. The trigger mechanism supports both semi-automatic and fully automatic modes, actuated via an ambidextrous selector switch, consistent across both ASMI variants. The longer ASMI-X receiver accommodates the extended barrel without altering internal modular architecture, ensuring compatibility of critical subassemblies.

Surface finishing includes advanced protective treatments. Aluminum components undergo hard anodizing to improve scratch resistance and corrosion durability, while steel elements are coated with phosphate treatments to ensure anti-corrosion behavior in humid and saline environments. Optional mission-specific finishes or camouflage coatings may be applied post-assembly. Both ASMI-COMPACT and ASMI-X models are laser-engraved with unique serial numbers for traceability.

The quality control and testing phase is structured as a multilayered validation process. Dimensional inspection tools are employed to verify machining tolerances, followed by mechanical stress simulations and live-fire testing. The firearm undergoes drop tests, environmental durability tests including exposure tests (water, mud, dust) are conducted in accordance with military and ASTM standards. For ASMI-X, additional ballistic profiling confirms enhanced muzzle velocity and accuracy due to the longer barrel and improved internal stabilization.

Each firearm is linked to a digital twin generated during the initial design phase. This digital twin maintains a record of component serial numbers, production batch, material origin, test results, and user feedback for lifecycle management. A laser-engraved identifier on the physical firearm ensures traceability and supports inventory, service, and audit requirements.

Through this integrated, modular, and adaptive manufacturing process, the invention delivers two field-optimized sub-machine gun variants ASMI-COMPACT for compact, close-quarters applications, and ASMI-X for enhanced-range tactical missions are both designed to offer superior reliability, maintainability, and scalability in modern combat and law enforcement environments.

Reference Numerals:
Ref. No. Component / Step Description
1 Design & Development
2 Material Selection & Procurement
3 Precision Machining & Fabrication
4 Assembly & Integration
5 Quality Control & Testing
6 Surface Finishing & Final Marking
7 Packaging & Distribution
21 Barrel component processing
22 Receiver machining
23 Bolt & Firing Mechanism Assembly
24 Trigger unit Integration
25 Structural module attachment
26 Surface preparation & protective Coating
27 Final assembly validation and inspection
200 Overall Stepwise Manufacturing Method (FIG. 2)
101 Receiver
101a-d Magazine assembly sub-parts
102 Barrel unit
204 Lower body/ housing
205 Springs/ Recoil assembly
206 Trigger mechanism
207 Magazine body

Referring now to FIG. 1 to FIG. 3, the ASMI-COMPACT and ASMI-X submachine gun is manufactured using a modular and weight-optimized approach, relying on advanced material choices and precision manufacturing processes.

The manufacturing method (200), as illustrated in FIG. 2, begins with the design and development phase (1), where a CAD model is generated and subjected to Finite Element Analysis (FEA) to define load-bearing parameters, stress distribution, and material thresholds. These simulations guide the dimensional and structural definition of the barrel (201), upper receiver (203), lower housing (204), and other subsystems like the feed handling module (207), grip handle (104), and barrel unit (102). For the ASMI-X, the barrel and receiver are extended by approximately 2 inches to improve ballistic performance and structural stability while maintaining ergonomic compatibility.

In the material selection and procurement phase (2), each component's material is sourced according to its functional requirement. The barrel (201) is fabricated from chrome-molybdenum steel, ensuring durability and heat resistance. The upper receiver (203) utilizes aircraft-grade aluminum for lightweight rigidity, while the lower housing (204), ergonomic grip handle (104), and magazine body receiver (101) are constructed from high-impact reinforced polymers for weight reduction and user comfort. Despite the size enhancements in ASMI-X, the overall weight remains under 2.5 kg, while the ASMI-COMPACT maintains a weight of around 2.0 kg.

During the precision machining and fabrication phase (3), components are shaped using CNC machines managed by a closed-loop adaptive control system. This system utilizes real-time input from thermal imaging and acoustic emission sensors to dynamically adjust spindle speed, feed rate, and coolant flow. The barrel (201) is manufactured via cold hammer forging or button rifling, then treated with chrome or nitride lining for enhanced durability. The bolt and firing mechanism (202) are produced through Electrical Discharge Machining (EDM) to achieve micron-level tolerances for consistent operation across both variants.

The assembly and integration phase (4) involves structured attachment of modular subsystems. The bolt carrier group is inserted into the receiver (203) along with the recoil spring (205). The lower housing (204) houses the modular trigger mechanism (206), including the sear, hammer, disconnector, and selector interface (103), which allows for Safe, Single, and Auto firing modes. The grip handle (104) and magazine body receiver (101) are attached using embedded fasteners. The barrel unit (102) is secured to the receiver (101) using locking hinges, allowing compact stowing in the ASMI-COMPACT, while the ASMI-X features a longer integrated barrel system for improved muzzle energy and accuracy.

Surface protection is administered in the surface finishing and final marking phase (6). The aluminum components such as the upper receiver (203) are hard anodized (Type III), while the steel components are phosphate coated to prevent corrosion. Laser engraving is carried out to apply serial numbers and identifiers. These identifiers map the physical weapon to its digital twin generated during the design phase.

The quality control and testing phase (5) includes dimensional verification using Go/No-Go gauges and CMMs, followed by environmental durability tests, including mud ingress, thermal cycling, and ASTM B117 salt spray exposure. Drop tests from 1.5 meters on all axes confirm structural integrity of key assemblies. Live-fire testing is performed to validate cyclic rate, recoil stabilization, and muzzle velocity across configurations. The ASMI-X, with its extended barrel, demonstrates consistent performance at an effective range of 200 meters, compared to the compact model's optimized performance at shorter distances.

The final packaging and distribution phase (7) includes encasing the firearm in corrosion-inhibiting material, with serialized packaging for secure, tamper-evident logistics.

Additional embodiments include an alternate bolt assembly (202) featuring a low-mass carrier to reduce recoil impulse, and an enhanced selector switch (103) with tactile feedback for safer and intuitive operation under stress. The closed-loop adaptive control used in CNC machining is based on real-time thermal imaging sensors and acoustic emission sensors. The feedback is processed via an embedded PLC that adjusts parameters such as toolpath curvature, spindle torque, and coolant flow.

When benchmarked against traditional submachine gun fabrication methods, the ASMI-COMPACT and ASMI-X system exhibits a 25% reduction in total weight, a 30% increase in material utilization efficiency, and superior thermal stability in continuous firing simulations.

The detailed assembly, control integration, and subsystem modularity collectively ensure that the ASMI-COMPACT and ASMI-X fulfils its design objectives while aligning with the manufacturing claims disclosed in this invention.

Applications, Advantages, Test Standards, and Results
The ASMI-COMPACT and ASMI-X submachine gun, manufactured through the disclosed method (200), finds robust application in various combat and tactical scenarios owing to its lightweight and modular construction. Due to the selective use of aircraft-grade aluminum (203) and reinforced polymer (204). The ASMI-COMPACT is ideal for Close-Quarters Battle (CQB), urban warfare, vehicle-borne operations, and paratrooper use, where light weight and concealability are vital. The ASMI-X is optimized for medium-range engagements, special reconnaissance, and open-field combat, thanks to its extended barrel and effective range of 200 meters. Both variants employ material optimization by replacing traditional steel with aircraft-grade aluminum and reinforced polymer, preserving strength while reducing carry load. The modular design allows tool-less maintenance, rapid part replacement, and field configuration of trigger groups, stocks, and selectors.

One of the significant advantages of the present invention lies in its material optimization strategy, which enables high strength-to-weight ratios by replacing traditional steel-based components with lightweight, performance-specific alternatives. For both ASMI-COMPACT and ASMI-X, the receiver (203) is CNC-machined from aircraft-grade aluminium, delivering high tensile strength while substantially reducing weight. The lower housing (204) and ergonomic grip handle (104) are constructed from high-impact polymer, contributing to overall weight savings and improved thermal insulation. These optimizations result in a total system weight of approximately 2.0 kg for ASMI-COMPACT and under 2.5 kg for ASMI-X, despite ASMI-X incorporating extended components.

Both models feature modular cartridge assemblies including the trigger mechanism (206), magazine body receiver (101), and fire selector (103). This modular approach allows for tool-less maintenance, rapid field servicing, and on-the-fly configuration changes, enhancing operational flexibility and deployment readiness.
The barrel unit (102) and integrated recoil spring assembly (205) further enhance operational compactness and recoil stability. In the ASMI-X, the barrel (201) is extended by approximately 2 inches, providing increased muzzle energy and an effective range of up to 200 meters, while maintaining recoil control due to optimized internal balancing and spring tuning. The selector switch (103) provides ambidextrous operation modes, Safe, Single, and Auto, supporting both left- and right-handed users. The internal chrome or nitride lining of the barrel (201) ensures consistent rifling wear and enhances thermal resistance, maintaining accuracy even after continuous firing. The integration of a digital twin for each firearm unit, based on design phase (1) models, allows operators and armorers to track lifecycle data, maintenance logs, and audit trails through the engraved serial number on the receiver (203).

To ensure conformance to military and international standards, extensive testing has been conducted. Dimensional accuracy of all machined components was verified using calibrated Go/No-Go gauges and coordinate measuring machines. For environmental resilience, the firearm underwent exposure tests in accordance with ASTM B117 salt spray conditions, mud ingress tests, and thermal cycling simulations. Drop testing from a height of 1.5 meters was performed onto all axes to validate mechanical integrity of the lower housing (204), upper receiver (203), and barrel mounting (201).

Live-fire trials confirmed stable performance across both platforms. The ASMI-COMPACT maintained a muzzle velocity of 375 ± 10 m/s with a cyclic rate of 800 ± 50 RPM, optimized for close-quarters operation. The ASMI-X demonstrated superior accuracy at extended range, without compromising on rate of fire or thermal stability. Recoil dynamics were captured via high-speed imaging and force sensors, with the recoil-absorbing spring (205) system effectively dampening impulse forces. The feed handling module (207) and magazine body receiver (101) were tested for over 1,000 continuous rounds with no feeding malfunctions observed.
Surface treatments including Type III hard anodizing (for aluminum parts) and phosphate coating (for steel parts) underwent 96-hour salt spray tests, exceeding requirements for marine-operational readiness. Finally, each firearm unit was securely packaged in serialized, corrosion-inhibiting containers, ensuring tamper-evident transport, precise inventory tracking, and long-term field readiness, meeting stringent end-user reliability expectations.
,CLAIMS:CLAIMS
We Claim
1. A method (200) of manufacturing an ASMI - COMPACT and ASMI-X sub-machine guns, comprising the sequential steps of:
initiating a design and development phase (1) including conceptualization, Computer-Aided Design (CAD) modeling, and Finite Element Analysis (FEA) to define structural and functional specifications of components such as the receiver (203), barrel (201), and lower body (204);
executing a material selection and procurement phase (2) involving the sourcing of chrome-molybdenum steel for the barrel (201), aircraft-grade aluminum alloy for the receiver (203), and reinforced polymers for the lower body (204), magazine body receiver (101), and ergonomic grip handle (104);
conducting a precision machining and fabrication phase (3), including CNC machining of the upper receiver (203), cold hammer forging or button rifling of the barrel (201), and EDM-based shaping of the bolt and firing mechanism (202);
performing an assembly and integration phase (4) by installing the bolt carrier group (202), modular fire control mechanism (206), recoil springs (205), ergonomic grip handle (104), selector switch interface (103), feed handling module (207) with magazine body receiver (101), and the barrel unit (102) to the base structural frame;
applying surface treatments and markings during a surface finishing and final marking phase (6) by anodizing aluminum components, phosphate coating steel parts, and laser engraving for traceability;
validating structural and operational reliability during a quality control and testing phase (5) through dimensional checks using Go/No-Go gauges, drop testing, environmental exposure testing, and live-fire performance trials;
completing the process through a packaging and distribution phase (7) using corrosion-inhibiting and serialized packaging for secure delivery and inventory tracking;
Characterized in that,
the method employs two variants: ASMI-COMPACT weighing approximately 2.0 kg, and ASMI-X with extended barrel and receiver configurations weighing less than 2.5 kg, and an effective range extended to 200 meters;
the CNC machining operations are managed by a closed-loop adaptive control algorithm, dynamically adjusting spindle speed and toolpath based on real-time sensor feedback on material hardness and thermal behavior;
the barrel (201) in ASMI-X is extended by 2 inches to improve ballistic performance and is internally coated with chrome or nitride lining post-rifling to enhance wear resistance, minimize thermal deformation, and maintain a rifling pitch of 250 ± 0.2 mm RH;
the receiver in ASMI-X is lengthened by 2 inches to structurally support the longer barrel and enhance operational balance;
the trigger mechanism (206) and fire selector switch (103) are configured as an interchangeable cartridge assembly, allowing ambidextrous operation and quick field replacement;
surface protection is provided via Type III hard anodizing for aluminum parts and phosphate coating for steel parts, validated through ASTM B117 salt spray testing;
firearm performance is verified using computerized ballistic profiling, measuring muzzle velocity (375 ± 10 m/s), cyclic rate (800 ± 50 RPM), and recoil stabilization data;
each firearm unit is linked to a CAD-based digital twin and marked with a laser-engraved serial number, enabling full lifecycle traceability for compliance, diagnostics, and maintenance.

2. The method (200) as claimed in Claim 1, wherein the barrel component processing step (21) comprises cold hammer forging or button rifling to form six grooves, followed by internal coating with chrome or nitride for enhanced longevity and thermal performance for ASMI-X, the barrel is approximately 2 inches longer than ASMI-COMPACT.

3. The method (200) as claimed in Claim 1, wherein the receiver machining (22) includes CNC machining of the upper receiver (203) from aluminum and forming the lower housing body (204) from high-impact polymer, joined using precision locating pins and mechanical fasteners for ASMI-X, the receiver length is extended by 2 inches.

4. The method (200) as claimed in Claim 1, wherein the bolt and firing mechanism assembly step (23) comprises EDM machining of bolt (202), extractor, and ejector, followed by installation of recoil springs (205) and bolt carrier group within the receiver (203).

5. The method (200) as claimed in Claim 1, wherein the trigger mechanism (206) includes inserting the fire control group (206) with hammer, sear, and disconnector into the lower housing body (204), and mounting the selector switch interface (103) externally.

6. The method (200) as claimed in Claim 1, wherein the structural module attachment (25) comprises fixing a foldable rear stock (102) to the structural frame (101) and attaching a grip handle (104) to the lower body (204) using embedded hardware.

7. The method (200) as claimed in Claim 1, wherein the surface preparation and protective coating (26) applies anodizing to aluminum parts, phosphate coating to steel parts, and laser engraving on the receiver (203) for lifecycle traceability.
8. The method (200) as claimed in Claim 1, wherein the machining steps (21-23) are governed by a CNC control system with real-time sensor feedback to adapt toolpath, feed rate, and spindle parameters dynamically.

9. The method (200) as claimed in Claim 1, wherein the final assembly validation &inspection step (27) comprises:
dimensional inspection with Go/No-Go gauges and CMM tools;
drop testing from a height of 1.5 meters onto all axes;
live-fire testing at 25 m, 50 m, and 200 m (for ASMI-X);
environmental testing including mud, dust, humidity, and ASTM B117 salt spray for 96 hours.

10. The method (200) as claimed in Claim 1, wherein each assembled unit is registered with its digital twin CAD model during the design and development phase (1) and tagged via laser-engraved serial number on the receiver (203) to support traceable diagnostics and compliance auditing.

6. DATE AND SIGNATURE

Dated this 13th August 2025

Signature

Mr. Srinivas Maddipati
IN/PA- 3124
Agent for applicant