Building an AR pistol that doesn't suck

Published on August 24, 2014
Duration: 19:20

This guide details building a reliable AR pistol, emphasizing component selection for hard-use scenarios. It covers barrel and gas system choices, DI vs. piston considerations, and the importance of quality upper and lower receivers. The build focuses on practical reliability and shooter ergonomics, including ambidextrous controls and essential accessories, with a total cost around $1600 for the base build.

Quick Summary

Building a reliable AR pistol involves careful component selection, prioritizing hard-use functionality. A 12.5-inch barrel with a carbine-length gas system, Direct Impingement operation, and quality upper/lower receivers contribute to reliability. This build cost around $1600 and achieved 1.5 MOA accuracy with 4,000 rounds fired and only one malfunction.

Chapters

  1. 01:47Introduction to the AR Pistol Build
  2. 03:14Barrel and Gas System Selection
  3. 05:07Direct Impingement vs. Piston
  4. 06:24Handguards and Upper Components
  5. 09:09Lower Receiver and Accuracy
  6. 10:45Pistol Brace and Buffer Setup
  7. 12:14Ambidextrous Controls
  8. 13:52Optics and Accessories
  9. 16:40Reliability and Cost Summary

Frequently Asked Questions

What barrel length is recommended for a reliable AR pistol build?

A 12.5-inch barrel is recommended for AR pistol builds to maintain sufficient muzzle velocity and lethality compared to shorter options, while still being manageable. This length, combined with a carbine-length gas system, offers a good balance of performance and reliability.

Why is Direct Impingement (DI) preferred over a piston system for AR pistols?

Direct Impingement is often preferred for AR pistols due to its simpler design, better parts availability, proven reliability, and less heat buildup at the front of the handguard during high-volume fire, contributing to overall system efficiency and shooter comfort.

What is the approximate cost of building a reliable AR pistol like the one shown?

The base build for this reliable AR pistol is approximately $1600, excluding additional accessories such as lasers and weapon lights. This price point offers a good value for a firearm designed for hard use.

How reliable is a well-built AR pistol?

A well-built AR pistol, like the one demonstrated, can achieve exceptional reliability. This specific build fired 4,000 rounds with only one magazine-related malfunction, showcasing the effectiveness of careful component selection and assembly.

More Gunsmithing & DIY Videos You Might Like

More from Regular Guy Training LLC

View all →