Brownells BRN-PROTO 5.56

Published on October 11, 2019
Duration: 11:48

This expert-level review of the Brownells BRN-PROTO 5.56 delves into its historical significance as a recreation of Eugene Stoner's early direct gas impingement rifle prototypes. The video highlights unique features like the under-carry handle charging mechanism and straight 25-round magazines, comparing them to later AR-10 and AR-15 designs. It offers practical insights into ammunition selection for its 1:12 twist barrel and discusses the rifle's appeal to collectors seeking a vintage AR experience without the cost of genuine originals.

Quick Summary

The Brownells BRN-PROTO 5.56 is a reproduction of Eugene Stoner's early direct gas impingement service rifle prototypes from the late 1950s. It features historical design elements like an under-carry handle charging mechanism and a 1:12 twist barrel optimized for 55-grain ammunition, appealing to collectors of vintage AR-style firearms.

Chapters

  1. 00:00Intro and Shooting
  2. 01:32Rifle Introduction: Brownells BRN-PROTO
  3. 01:46Prototype Origins: Eugene Stoner's DGI Rifle
  4. 02:18Early Development Timeline (1958-59)
  5. 02:30Magazine Design: 25-Round Straight Mags
  6. 03:01Unique Rifle Features: Forend and Barrel
  7. 03:31Barrel Specs and Sights
  8. 03:58Charging Handle: Under Carry Handle Design
  9. 04:31Bolt and Controls: No Forward Assist
  10. 05:03Dust Cover and Rear Sight
  11. 05:21Zeroing and Sighting Adjustments
  12. 05:37Magazine Compatibility
  13. 05:57Ammunition Preference: 1:12 Twist Barrel
  14. 06:23Ammunition Used: Federal MSR 55-Grain
  15. 06:36Handling Real Prototypes
  16. 07:32Furniture Comparison: Polymer vs. Bakelite
  17. 07:56Overall Rifle Impression
  18. 08:03More Shooting and Information
  19. 08:16Rifle Appeal: Vintage AR Experience
  20. 08:33Past Futuristic Design
  21. 09:31Target Shooting Accuracy at 300 Yards
  22. 09:40Rifle's Appeal and Collectibility
  23. 10:12Collector Appeal: Affordable Vintage AR
  24. 10:28Iron Sight Shooting Philosophy
  25. 11:02Gratitude to Supporters
  26. 11:31Closing Remarks

Frequently Asked Questions

What is the Brownells BRN-PROTO 5.56?

The Brownells BRN-PROTO 5.56 is a reproduction of Eugene Stoner's early direct gas impingement service rifle prototypes from the late 1950s. It aims to replicate the historical design and features of these pioneering firearms.

What are the key historical features of the BRN-PROTO?

Key historical features include a charging handle under the carry handle, a round vented forend, a 20-inch barrel, and a diopter-adjustable rear sight. It also replicates early straight 25-round magazine designs.

What ammunition is recommended for the BRN-PROTO?

Due to its 1:12 right-hand twist rate barrel, the BRN-PROTO is best suited for lighter 55-grain ammunition. Heavier rounds, such as 62-grain and above, may not stabilize properly, impacting accuracy.

Who is the BRN-PROTO ideal for?

This rifle is ideal for firearms collectors and enthusiasts interested in early AR design history. It offers a way to own a piece reminiscent of historical prototypes without the high cost of genuine originals.

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