I bought these to go with the hex bushings. While I haven't shot the gun enough to have a firm opinion, I believe that these will help to keep everything tight as they should be. Another great idea from Challis.

Perfect match with the Hex Bushings. Provides cushioning for the grips, and prevents loosening of the bushing, which was a frequent problem I had. Great customer service as well.

Was easy to use and made a big difference on reinstalling grips.

Highly recommended.👍

These are good to use with the Challis Hex Bushings. These are high quality and used with the grip screw o rings give the grip a more stable feel.

Quick delivery, fair pricing, and excellent product. What else is there?