How to Change The Endplate on an AR-15!

Published on January 31, 2020
Duration: 5:39

This guide demonstrates how to replace the endplate on an AR-15, specifically upgrading to an endplate with a QD sling mount. The process involves removing the stock, buffer system, and castle nut, then installing the new endplate and reassembling the components. An Armorer's wrench is the primary tool required. The instructor emphasizes the importance of not losing small parts like the detent spring and pin during disassembly.

Quick Summary

To change an AR-15 endplate, you'll need an Armorer's wrench. The process involves removing the stock, buffer spring, buffer, and castle nut. Then, replace the old endplate with the new one, reinsert the buffer tube, and re-secure the castle nut. Be careful not to lose the detent spring and pin during disassembly.

Chapters

  1. 00:00Introduction & Goal
  2. 00:47Removing Buffer Spring and Buffer
  3. 01:15Removing the Stock
  4. 01:33Removing the Castle Nut
  5. 02:02Removing Buffer Tube and Detent Spring
  6. 02:30Removing Old Endplate
  7. 02:35Installing New Endplate
  8. 02:51Reassembly: Buffer Tube and Castle Nut
  9. 04:04Reinstalling Buffer System
  10. 04:43Reinstalling Stock
  11. 04:59Final Result & Conclusion

Frequently Asked Questions

What tools are needed to change an AR-15 endplate?

The primary tool required for changing an AR-15 endplate is an Armorer's wrench, which is essential for removing and tightening the castle nut. A flathead screwdriver can also be helpful during the reassembly of the buffer system.

Why would someone want to change their AR-15 endplate?

The most common reason to change an AR-15 endplate is to upgrade to one with a QD (Quick Detach) sling mount. This allows for the convenient and secure attachment of a one-point sling, enhancing the rifle's maneuverability and carrying options.

What are the critical small parts to watch out for during AR-15 endplate replacement?

When removing the buffer tube, it's crucial to be careful not to lose the detent spring and pin. These small components are vital for the proper functioning of the lower receiver and must be reinstalled correctly.

Is staking the castle nut necessary when replacing an AR-15 endplate?

While not demonstrated in this specific video, staking the castle nut is a recommended practice for ensuring long-term security and preventing it from loosening. This video focuses on tightening it securely.

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