Challis hex drive bushings feature a design that allows for secure installation and removal without damaging the gun or bushing, using a 7/32” nut driver for enhanced thread engagement.
The bushings are reusable and compatible with an optional O-ring to keep grips tight, protect the frame, and minimize shock to grips and bushings during discharge.
Specifically designed for 1911 models including Government, Commander, and Officers, and intended for use with grips that are at least 0.24" thick.