Suppressed 13.7 Build: GunThots Mini EP002

Published on February 20, 2021
Duration: 13:25

This custom 13.7-inch suppressed AR-15 build, optimized for reliability with brass ammunition, demonstrates a successful experiment in gassing and component selection. The build features a Daniel Defense barrel cut to 13.7 inches with a .076 gas port, paired with a V7 upper and Geissele rail. Despite minor struggles with steel-case ammo unsuppressed, the rifle offers a remarkably flat shooting experience with minimal gas blowback.

Quick Summary

The custom 13.7-inch suppressed AR-15 build features a Daniel Defense barrel cut to 13.7" with a .076 gas port and mid-length system, optimized for reliability with brass ammunition. It offers a very flat shooting experience with minimal gas blowback, though steel-case ammo may require buffer adjustments for consistent cycling.

Chapters

  1. 00:00Intro: Custom 13.7" Suppressed AR Build
  2. 02:49Build Specs: V7, DD, Geissele, EOTech
  3. 04:36Reliability: Brass vs. Steel Case, Buffer Weights
  4. 06:12Accuracy Testing: MOA Results
  5. 06:48Shooting Experience: Flat & Smooth
  6. 08:28Conclusion: Optimized Gassing Success

Frequently Asked Questions

What are the key specifications of the custom 13.7-inch suppressed AR-15 build?

The build features a 13.7-inch Daniel Defense barrel (cut from 14.5"), a .076 gas port, mid-length gas system, V7 upper receiver, Radian Raptor charging handle, Daniel Defense BCG, Geissele rail, and EOTech optics. It's optimized for suppressed use with brass ammunition.

How reliable is the 13.7-inch suppressed AR build with different ammunition types?

The rifle is highly reliable with brass-cased ammunition, both suppressed and unsuppressed, even in cold weather. It experienced cycling issues with steel-case ammo when using an H2 buffer unsuppressed, requiring a switch to an H1 buffer.

What accuracy was achieved with the custom 13.7-inch AR build?

Accuracy results varied by ammunition: Magtech 77gr yielded 1.33 MOA, Wolf Gold 55gr was 2 MOA, Lake City M193 was 2.25 MOA, and Barnaul Steel Case averaged 3.5 MOA. The barrel was professionally cut and crowned.

How does the custom 13.7-inch suppressed AR shoot compared to standard AR-15s?

The rifle is described as exceptionally flat-shooting with minimal recoil and virtually no gas blowback ('gas in the face'). This smooth operation makes it feel less aggressive, almost like a .22 LR, contributing to a 'boring' but highly effective shooting experience.

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