TOP 03-2-045A Small Arms - Hand and Shoulder Weapons and Machine Guns

The standard "TOP 03-2-045A Small Arms - Hand and Shoulder Weapons and Machine Guns," published by the U.S. Army Test and Evaluation Command as part of its test operation procedures, contains a compilation of test procedures for hand and shoulder weapons and machine guns, including crew-served weapons and light automatic cannons up to 50 mm in caliber. These test procedures apply only to basic weapons. TOP 04-2-0161 applies to test procedures for small arms ammunition. TOP 03-2-504A2 also applies to the safety assessment of hand and shoulder weapons. Grenade launchers are addressed in TOP 03-2-0303. Many small arms are also used as subsystems on combat vehicles, aircraft, watercraft, and similar. In these cases, relevant standards should be consulted for possible additional test procedures.

Test procedures are intended to aid in the standardization of testing and the development of detailed test plans, test and evaluation master plans, and similar planning documents. This standard does not mandate any specific tests or serve to establish performance or safety criteria for Army materials. Actual requirements and criteria must come from requirements documents, contractual obligations, or Army regulations.

This standard lists specific items used in tests. Because the accuracy and precision requirements for a particular measurement may vary between procedures, additional information is included in the relevant test procedures. Standard equipment common to most technical organizations is not listed, but the tester must ensure that the equipment or instrument used meets the specific requirements of each procedure.

The test procedures defined in this standard are:

• First inspection
• Cooking test
• Reliability and durability
• Accuracy and distribution
• Adverse conditions
  • Extreme temperatures (high temperature test, low temperature test)
  • Gender
  • Water spray (rain) test
  • Sand and dust (dynamic test procedure for sand and dust exposure, static test procedure for sand and dust exposure, static test procedure for dust exposure)
  • Mud test
  • Immersion tests (freshwater immersion, saltwater immersion, deep water immersion, surf zone)
  • Salt fog
  • iciness
  • Solar radiation
• Chemical compatibility
• Signature tests
  • Flare
  • Noise
• Rigorous usage tests
  • Free load
  • 1,5 meters drop
  • Assembly test
• Attitude test
• Belt pulling capacity
• Blocked barrel (muzzle obstruction, water-filled barrel, bullet obstruction)
• Barrel performance
• toxic fumes
• Recoil energy and kinematics
• Ammunition compatibility
• Accessory compatibility
• Logistics supportability
• Post-shot inspection
• Human factors analysis
• Additional tests
  • Mantar
  • Altitude (low air pressure)
  • Test shot
  • Electromagnetic interference (EMI) and electromagnetic compatibility (EMC)
  • Parts replacement
  • Unlubricated
  • Pollution
  • Light Grey

The TOP 03-2-045A standard is important because it plays a critical role in ensuring the reliability, safety, and effectiveness of the U.S. military's small arms. The key reasons for its importance include:

• Standard test procedures: This standard describes how small arms should be tested. These include pistols, rifles, machine guns, and light automatic cannons (up to 50 mm). Without a standard, different testing laboratories or teams may use inconsistent methods, making results unreliable or difficult to compare.
• Supports warfighter safety and mission success: Through these tests, weapons:
  • Fires reliably under extreme conditions (such as heat, dust, mud)
  • Does not jam or stall
  • It ensures accuracy and durability in conflict situations.

Any malfunction in these aspects could put the lives of soldiers at risk.

• Establishes the basis for test plans: This standard serves as a reference framework for developing detailed test plans and test and evaluation master plans. This ensures that test programs are well-organized and comprehensive, particularly in new weapons procurement programs. This standard ensures uniformity across test facilities and projects.
• Complements, not replaces, performance standards: The TOP 03-2-045A standard describes how to test, but it does not define what good performance is. Performance requirements arise from:
  • Operational needs
  • contracts
  • Army regulations

However, without appropriate testing methods, it cannot be verified whether these requirements are met.

• Interoperability with other systems: Many small arms are part of larger systems (such as vehicle- or aircraft-mounted weapons). This standard integrates with related standards to provide:
  • Cross-platform compatibility
  • Holistic system performance testing
• Accountability and documentation: Using a standardized procedure, test results are auditable, reproducible, and considered scientifically valid. This is critical for procurement decisions, safety certifications, and legal defensibility.

Our organization, which has been operating for many years and meticulously follows global developments in science and technology, conducts testing, measurement, and analysis in a wide range of areas for businesses across all sectors with a skilled team and extensive infrastructure. In this context, we also provide testing services in accordance with the "TOP 03-2-045A Small Arms - Hand and Shoulder Weapons and Machine Guns" standard.