NEW BCA 7.62x39 16" side Charging Upper (Gen 2)

Published on May 2, 2021
Duration: 11:07

This guide addresses common reliability issues with 7.62x39 AR-15 builds, specifically light primer strikes and feeding problems. It provides practical solutions recommended by a high-level gear reviewer with extensive testing experience. The advice focuses on upgrading internal components and selecting appropriate magazines for optimal performance with this caliber in an AR platform.

Quick Summary

The Bear Creek Arsenal (BCA) Gen 2 Side Charging Upper in 7.62x39 addresses common AR-15 reliability issues. Solutions include using enhanced firing pins and extra-power hammer springs for ignition, and C Products Defense 10 or 20-round magazines for feeding. The upper offers a flat profile, good optic clearance, and significant value.

Chapters

  1. 00:49Introduction to BCA Gen 2 Side Charging Upper
  2. 02:00Pricing and Value
  3. 03:18Barrel and Rail Specifications
  4. 04:49Gen 2 Side Charging Mechanism
  5. 06:16Reliability and Firing Pin Issues
  6. 08:27Feeding and Magazines

Frequently Asked Questions

What are common reliability issues with 7.62x39 in an AR-15?

Common issues include light primer strikes with steel-cased ammo, requiring enhanced firing pins and extra-power hammer springs. Feeding problems can also occur, often resolved by using specific magazine types like 10 or 20-round C Products Defense magazines.

What are the benefits of the BCA Gen 2 Side Charging Upper?

The Gen 2 design offers a flat left-side profile beneficial for body armor and better clearance for large optics. It provides a complete upper assembly including the BCG at a competitive price point, especially when on sale.

What barrel and rail specifications does the BCA Gen 2 Side Charging Upper feature?

It includes a 16-inch heavy profile, parkerized barrel with a 1:7 twist rate, an A2 birdcage flash hider, and a 15-inch M-LOK rail system with QD slots.

Which magazines are recommended for reliable feeding of 7.62x39 in an AR-15?

For reliable feeding of the tapered 7.62x39 cartridge in an AR-15 platform, C Products Defense 10 or 20-round magazines are recommended. Standard 30-round magazines can sometimes experience binding issues.

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