How To Install Your Bolt Catch / Bolt Release On Your AR15 Lower Receiver

Published on January 21, 2025
Duration: 0:55

This guide details the installation of a bolt catch/release on an AR15 lower receiver. It covers two methods: using a threaded screw or a roll pin. The process involves assembling the spring and pin, inserting them into the receiver, and securing the bolt catch. The instructor emphasizes proper tightening and testing for free movement.

Quick Summary

To install an AR15 bolt catch, first insert the spring into the receiver hole, then the plunger. Apply pressure to the bolt catch, align the holes, and secure with either a threaded screw tightened until flush or a roll pin tapped in with a 3/32 inch punch. Ensure the bolt catch moves freely afterward.

Chapters

  1. 00:00Introduction: Bolt Catch Installation
  2. 00:04Tooling Options for Installation
  3. 00:14Preparing for Bolt Catch Install
  4. 00:19Assembling Bolt Catch Components
  5. 00:24Securing the Bolt Catch
  6. 00:36Optional Loctite Application
  7. 00:40Final Tightening and Testing
  8. 00:51Concluding Remarks

Frequently Asked Questions

What tools are needed to install an AR15 bolt catch?

You will need a 3/32 inch roll pin punch if using a roll pin, or an Allen key if using a threaded screw. Optional tools include Loctite for added security on the screw.

What is the correct order for installing the bolt catch spring and plunger?

First, place the bolt catch spring into the designated hole on the lower receiver. Then, position the plunger on top of the spring, ensuring it faces outwards and will contact the bolt catch.

How tight should the bolt catch screw be?

The threaded screw for the bolt catch should be tightened until it is flush or stops moving. It does not need to be excessively tight, and you should ensure the bolt catch still moves freely.

Can I use Loctite when installing an AR15 bolt catch screw?

Yes, you can add a small amount of Loctite to the threaded screw if desired for extra security. This is an optional step but can help prevent the screw from loosening over time.

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