NRA Gun of the Week: AR-15 Rifle

Published on May 4, 2018
Duration: 3:18

This video showcases a retro AR-15 rifle built in the early 1990s, featuring an Essential Arms cast lower receiver and a Colt H-Bar barrel with a 1:7 twist. The rifle is assembled with surplus military parts and an M16A1/SP1 style configuration, including a triangular handguard and a windage-adjustable rear sight. It's noted for its sub-MOA accuracy and suitability for NRA High Power competition, despite its older design elements.

Quick Summary

This retro AR-15 build from the early 1990s features an Essential Arms cast lower receiver and a Colt H-Bar barrel with a 1:7 twist. It incorporates M16A1/SP1 style furniture, including a triangular handguard, and is capable of sub-MOA accuracy, making it suitable for NRA High Power competition despite its older design elements.

Chapters

  1. 00:22Introduction: Retro AR-15 Build
  2. 00:28Essential Arms Lower Receiver
  3. 00:33Colt H-Bar Barrel & 1:7 Twist
  4. 00:40Purpose: NRA High Power Match Rifle
  5. 00:51Hodgepodge Build Style
  6. 01:03Cast Receiver Details
  7. 01:34M16A1/SP1 Style Furniture
  8. 01:40Triangular Handguard
  9. 01:55Match Rifle Capabilities
  10. 02:02Rear Sight Limitations
  11. 02:20Accuracy and Trigger
  12. 02:27Colt Commercial Barrel Specs
  13. 02:38Birdcage Flash Hider
  14. 02:46Conclusion: A Classic Build

Frequently Asked Questions

What makes this retro AR-15 build unique?

This AR-15 is unique due to its early 1990s build date, featuring an Essential Arms cast lower receiver and a Colt H-Bar barrel with a 1:7 twist. It incorporates M16A1/SP1 style furniture like a triangular handguard, giving it a distinct retro appearance.

What are the key components of this retro AR-15?

Key components include an Essential Arms cast lower receiver, a Colt commercial H-Bar barrel with a 1:7 twist, M16A1/SP1 style buttstock and triangular handguard, a birdcage flash hider, and an NRA CMP legal trigger. It's assembled with a mix of surplus military and commercial parts.

What was the intended purpose of this AR-15 build?

The rifle was built in the early 1990s to serve as a match rifle for NRA High Power competition. The builder aimed to leverage the accuracy of the 5.56mm platform for competitive shooting, moving beyond traditional M1 Garand and M14 platforms.

What are the limitations of the rear sight on this retro AR-15?

The rear sight on this rifle is only windage-adjustable, a characteristic of older SP1 models. To adjust for elevation at longer ranges, one must use the front sight post, which is less convenient than modern fully adjustable rear sights.

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