How to Install A2 (M16 style) Buffer Tube and Stock

Published on April 13, 2023
Duration: 6:35

Brian from 1st Shot Tactical provides a detailed, step-by-step guide on installing a UTG AR-15 A2 Fixed Buttstock Kit. The tutorial covers preparing the lower receiver, installing the buffer tube, securing the stock with its components, and final assembly with lubrication. This guide is suitable for intermediate builders looking to achieve a retro AR-15 aesthetic.

Quick Summary

To install an A2 fixed buttstock kit on an AR-15, first prepare the lower receiver by installing the detent spring and retainer. Screw in the buffer tube, capturing the detent. Then, insert the spacer into the stock, slide it onto the tube, and secure it with the long screw. Finally, install the buffer and spring, and lubricate the tube.

Chapters

  1. 00:00Introduction: A2 Fixed Stock Kit
  2. 00:36Unboxing the A2 Kit
  3. 01:51Preparing the Lower Receiver
  4. 02:40Installing the Buffer Tube
  5. 03:23Tightening the Buffer Tube
  6. 03:55Installing the Stock
  7. 05:09Final Assembly & Lubrication Tip
  8. 06:10Conclusion

Frequently Asked Questions

What are the main components included in a UTG AR-15 A2 Fixed Buttstock Kit?

A UTG AR-15 A2 Fixed Buttstock Kit typically includes the A2 stock itself, a buffer tube (receiver extension), a buffer spring, a buffer, a spacer (nut), and a long screw for securing the stock.

How do you properly install the buffer tube on an AR-15 lower receiver?

To install the buffer tube, screw it into the lower receiver while simultaneously pushing down on the buffer tube detent. This allows the tube to pass over the detent and capture it about halfway, ensuring a secure fit.

What is the purpose of the spacer in an A2 fixed stock installation?

The spacer, often referred to as a nut, is inserted into the A2 stock before it is slid onto the buffer tube. It helps to properly align and secure the stock to the receiver extension.

Should I use Loctite when installing an A2 fixed stock?

While not strictly required, using a drop of Loctite on the stock screw can provide extra security and prevent it from loosening over time due to recoil or vibration.

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