Quick Tip: Installing the PWS Enhanced Buffer Tube

Published on April 16, 2019
Duration: 1:49

This guide provides expert-level instructions from Steve at Brownells on installing the Primary Weapon Systems (PWS) Enhanced Buffer Tube, featuring a ratcheting castle nut and end plate. The PWS system eliminates the need for staking or Loctite, offering a secure and easily removable assembly. The video details the step-by-step process for attaching the buffer tube to an AR-style lower receiver, securing the castle nut, and installing the enhanced buffer, specifically noting its use in a 9mm pistol build.

Quick Summary

The PWS Enhanced Buffer Tube system offers a secure installation without staking or Loctite, thanks to its ratcheting castle nut and end plate. This guide from Brownells demonstrates the straightforward process for attaching the tube to an AR-15 lower receiver and securing the castle nut with moderate torque using a wrench.

Chapters

  1. 00:00Introduction & Components
  2. 00:11Castle Nut & End Plate Installation
  3. 00:27Attaching Buffer Tube to Receiver
  4. 00:48Tightening Castle Nut
  5. 00:59Final Torque with Wrench
  6. 01:11Ratcheting System Benefit
  7. 01:20Installing Enhanced Buffer

Frequently Asked Questions

What are the benefits of the PWS Enhanced Buffer Tube system?

The PWS Enhanced Buffer Tube system features a ratcheting castle nut and end plate that eliminate the need for staking or Loctite. This makes installation and removal simpler and more secure, ensuring the buffer tube remains in place without permanent modifications.

How do you install the PWS Ratcheting Castle Nut?

First, hand-tighten the castle nut onto the buffer tube until you hear ratcheting clicks engaging the end plate. Then, use a wrench to apply moderate final torque until it reaches its final secure position, ensuring it's locked without over-tightening.

Is the PWS Enhanced Buffer Tube compatible with all AR-15 builds?

The PWS Enhanced Buffer Tube is generally compatible with standard AR-15 lower receivers. The PWS Enhanced Buffer (Pistol Variant) is specifically recommended for 9mm pistol AR-style builds, ensuring proper fit and function for that application.

What tools are needed to install the PWS Enhanced Buffer Tube?

You will need basic tools for installation, including a scribe to depress the buffer retainer and a light AR-style wrench, such as one from Rock River Arms, for final torque on the castle nut. Ensure the firearm is unloaded.

More Gunsmithing & DIY Videos You Might Like

More from Brownells, Inc.

View all →