I Built a Custom 9mm AR Pistol... Here's What Happened. (Angstadt Arms)

Published on September 12, 2017
Duration: 8:14

This guide details the assembly and testing of a custom Angstadt Arms AR-9 pistol, featuring expert insights from the Tactical Toolbox host. It covers component selection, installation of specialized parts like the Hiperfire 24C trigger and Vortex Razor optic, and crucial reliability testing, particularly concerning magazine compatibility. The host, demonstrating high authority, emphasizes practical application and potential pitfalls in custom AR builds.

Quick Summary

The custom Angstadt Arms AR-9 pistol build features Angstadt Arms receivers, a 6-inch barrel, Hiperfire 24C trigger, and Vortex Razor optic. Range testing highlighted superior reliability with OEM Glock magazines over aftermarket options, and effective recoil management from the Strike Industries Mini King Comp muzzle brake.

Chapters

  1. 00:00Introduction to AR-9 Build
  2. 00:27Core Components: Receivers, BCG, Barrel
  3. 01:10Trigger and Controls
  4. 02:02Lower Receiver Hardware and Furniture
  5. 02:41Sights, Optics, and Handstop
  6. 03:19Muzzle Device and Performance
  7. 04:55Reliability and Magazine Compatibility

Frequently Asked Questions

What are the key components of the custom Angstadt Arms AR-9 pistol build?

The build features Angstadt Arms upper and lower receivers, their bolt carrier group, an M-LOK handguard, a 6-inch barrel, the Hiperfire 24C competition trigger, Strike Industries controls, a KAK Shockwave brace, and a Vortex Razor red dot optic.

How did different magazines perform in the Angstadt Arms AR-9 build?

OEM Glock magazines proved significantly more reliable and ensured consistent last-round bolt hold-open (LRBHO) compared to aftermarket ETS or Magpul PMAGs in this specific custom AR-9 pistol build.

What muzzle device was used, and how did it perform?

A Strike Industries Mini King Comp 9mm muzzle brake was installed. Range testing indicated it effectively managed recoil and muzzle rise during firing.

What are the advantages of the Hiperfire 24C trigger mentioned in the build?

The Hiperfire 24C competition trigger is adjustable for pull weight and hammer strike intensity, offering enhanced trigger control and a crisp break suitable for custom builds.

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