Quick Tip: How To Identify AR-15 Trigger Springs

Published on November 19, 2020
Duration: 1:34

This guide, presented by Caleb from Brownells, details how to correctly identify and install the disconnector spring and bolt catch spring in an AR-15. It emphasizes the visual difference of the disconnector spring's flared end and the consequences of incorrect installation, such as malfunctions.

Quick Summary

The AR-15 disconnector spring is identifiable by its flared bottom end, which is larger than its top. This flared end must be correctly seated in the trigger's specific cutout. Using this spring for the bolt catch will cause malfunctions.

Chapters

  1. 00:05Common AR-15 Spring Issue
  2. 00:19Identifying the Disconnector Spring
  3. 00:30Proper Disconnector Spring Installation
  4. 01:02Consequences of Wrong Bolt Catch Spring
  5. 01:13Conclusion and Support

Frequently Asked Questions

How can I tell the difference between an AR-15 disconnector spring and a bolt catch spring?

The disconnector spring has a distinctive flared end on the bottom, which is larger than its top end. The bolt catch spring does not have this flared feature, making the disconnector spring visually unique for proper identification.

What happens if I install the AR-15 disconnector spring incorrectly?

If the disconnector spring is installed incorrectly, particularly if the flared end isn't seated properly in the trigger's cutout, it can get stuck. This will lead to disconnector malfunctions and prevent the trigger mechanism from operating as intended.

Can I use the disconnector spring for the bolt catch on an AR-15?

No, you should not use the disconnector spring for the bolt catch. If you do, the disconnector spring will likely get stuck in the bolt catch channel, preventing the bolt catch from receiving proper tension and functioning correctly.

Where can I get help if I'm unsure about AR-15 trigger spring installation?

Brownells offers a dedicated tech line to assist with any questions or issues you may encounter during your AR-15 build, including spring identification and installation. You can reach them at 800-741-0015.

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