Bear Creek Arsenal 7.62x39 Gen 2 Side Charger - High Value, Heavy, Accurate, And Prone to Breaking

Published on May 8, 2022
Duration: 33:44

This review of the Bear Creek Arsenal 7.62x39 Gen 2 Side Charger upper receiver highlights its high value proposition, exceptional accuracy, and significant weight. The presenter, with extensive experience with Bear Creek Arsenal products, details the barrel's 4150 chromoly steel construction, heavy profile, and 1-in-10 twist rate, contributing to sub-MOA accuracy with specific ammunition. However, the review also points out critical weaknesses, particularly the prone-to-failure 7.62x39 extractor design and the over-gassed nature of the system, recommending modifications like an adjustable gas block for improved reliability.

Quick Summary

The Bear Creek Arsenal 7.62x39 Gen 2 Side Charger upper receiver offers high value with excellent accuracy, achieving sub-MOA groups with specific loads. However, its heavy profile contributes to significant weight, and the 7.62x39 bolt design is prone to extractor failure due to increased cartridge energy and an over-gassed system. Modifications like an adjustable gas block are recommended for improved reliability.

Chapters

  1. 00:08Introduction
  2. 01:38Welcome and Channel Support
  3. 02:36Full Disclosure and Review Setup
  4. 03:30Barrel Specifications (16" 4150 Chromoly, Heavy Profile)
  5. 04:36Muzzle Device (A1 Style Spiral Flash Hider)
  6. 05:01Gen 2 Side Charging Handle and Bolt
  7. 05:49Upper Receiver Construction (7075 T6 Billet)
  8. 06:09Price Point and Manufacturing Strategy
  9. 06:51Charging Handle Machining and Security
  10. 07:30Bolt Carrier Group (8620 Carrier, 9310 Bolt)
  11. 08:41Carrier Profile and Gas Key
  12. 09:21Nitride Finish Wear
  13. 11:14Enhanced Firing Pin
  14. 12:22Bolt Face Depth (Type 1 vs. Type 2)
  15. 13:107.62x39 Bolt Design Weaknesses
  16. 13:31Extractor Failure (Common Issue)
  17. 14:28Extractor Sheared Off (Around 970 Rounds)
  18. 15:52Improving Extractor Longevity (Adjustable Gas Block)
  19. 18:5215-inch M-LOK Handguard
  20. 23:14Barrel Profile (Bull Barrel Taper)
  21. 24:04Barrel Weight and Overall Upper Weight
  22. 24:29Carbine Length Gas System
  23. 25:17Accuracy Performance (50 Yards)
  24. 26:01Ammunition Testing (Red Army Standard, Hornady Black)
  25. 26:51Subsonic Ammunition Testing (220 Grain)
  26. 27:16Zeroing Target and Group Consistency
  27. 28:35Accuracy vs. Weight Trade-off
  28. 28:48Long Range Performance (500 Yards)
  29. 30:18Pros and Cons Summary
  30. 30:48Not Recommended for Duty/Self-Defense
  31. 31:57Recommended Use Cases (Hunting, Fun Gun)
  32. 32:25Over-Gassed System Recommendations
  33. 32:48Overall Impression and Recoil
  34. 33:30Conclusion

Frequently Asked Questions

What are the key specifications of the Bear Creek Arsenal 7.62x39 Gen 2 Side Charger upper receiver?

The upper features a 16-inch 4150 chromoly steel barrel with a heavy profile and a 1-in-10 twist rate. It includes a Gen 2 side charging handle, a 7075 T6 billet upper receiver, and a 15-inch M-LOK handguard. The price is approximately $250.

What are the main reliability concerns with this 7.62x39 upper receiver?

The primary concern is the 7.62x39 bolt design, which is prone to extractor failure due to material removal and increased cartridge energy. The system is also noted to be over-gassed, contributing to wear and tear.

How accurate is the Bear Creek Arsenal 7.62x39 Gen 2 Side Charger?

Despite its weight and budget price, the upper receiver demonstrates excellent accuracy. With specific ammunition like 123-grain Red Army Standard, it can achieve sub-MOA groups at 50 yards, and maintains good accuracy even with extended firing.

What modifications are recommended for the Bear Creek Arsenal 7.62x39 Gen 2 Side Charger?

To improve reliability and mitigate extractor failure, installing an adjustable gas block is highly recommended to reduce gas pressure. Using the heaviest buffer and spring combination is another option to slow down the bolt carrier group.

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