Kalashnikov USA KR 103 - Boating Accident Survival Test Report

Published on December 13, 2020
Duration: 13:30

This report details a 72-hour survival test of the Kalashnikov USA KR 103 rifle submerged in a swamp. The rifle, loaded with a mixed variety of ammunition including Wolf, Tula, and Fiocchi, was retrieved and tested. Despite significant mud and debris, the KR 103 functioned without malfunctions, demonstrating impressive resilience. Internal component inspection revealed some surface rust, as expected, but no significant deformation or damage that would impede function. The no-go gauge test confirmed proper headspace after the ordeal.

Quick Summary

The Kalashnikov USA KR 103 rifle passed a rigorous 72-hour swamp submersion test, functioning flawlessly with mixed ammunition after retrieval and cleaning. Internal components showed only minor surface rust, with no significant deformation, and headspace remained within spec.

Chapters

  1. 00:00Introduction & Swamp Submersion
  2. 00:39KR 103 Boating Accident Test Begins
  3. 01:06Retrieving the KR 103 from the Swamp
  4. 01:17Cleaning Mud from Muzzle Brake
  5. 01:49Initial Inspection & Charging Handle
  6. 01:56Post-Test Firing & Performance
  7. 02:05Mixed Ammunition Test
  8. 02:39Malfunction-Free Performance
  9. 02:54Trigger Characteristics Explained
  10. 03:18Trigger Reset and Quick Shooting
  11. 03:41Zero Malfunctions Across All Ammo
  12. 03:57Internal Component Inspection Begins
  13. 04:17Recoil Spring Surface Rust
  14. 04:30Bolt and Bolt Carrier Inspection
  15. 04:58Caming Channel and Piston Head
  16. 05:11Vegetation on Side Rail
  17. 05:18Trunnion Inspection (Right & Left)
  18. 05:34Chamber and Trunnion Bottom Inspection
  19. 05:49Mag Release Catch & Rivets
  20. 05:73Trigger and Retainer Plate
  21. 05:90Gas Tube and Handguard Mud
  22. 06:09Gas Tube Interior
  23. 06:23Barrel and Gas Block
  24. 06:59Rear Trunnion Inspection
  25. 07:10No-Go Gauge Test Setup
  26. 07:25No-Go Gauge Test Results
  27. 07:51Conclusion & Next Steps

Frequently Asked Questions

How did the Kalashnikov USA KR 103 perform after being submerged in a swamp for 72 hours?

The KR 103 performed exceptionally well, functioning flawlessly after retrieval and cleaning. It cycled a mixed variety of ammunition without any malfunctions, demonstrating remarkable reliability and durability in extreme conditions.

What was the condition of the KR 103's internal components after the swamp test?

Internal components showed expected surface rust, particularly on the recoil spring. However, critical parts like the bolt carrier, bolt lugs, and trunnions exhibited no significant deformation or damage, indicating robust construction.

Does the KR 103's trigger require modification for rapid shooting?

The KR 103 features a two-stage trigger that, while good, can feel unusual during rapid magazine dumps due to its reset. For shooters prioritizing speed in such scenarios, an aftermarket trigger upgrade might be beneficial.

Was the headspace of the KR 103 affected by the 72-hour submersion test?

No, the headspace remained within specification. A no-go gauge test confirmed that the KR 103's headspace did not change after being submerged, fired, and inspected, highlighting its structural integrity.

More Reviews Videos You Might Like

More from AK Operators Union, Local 47-74

View all →