Challis hex drive bushings use a 7/32” nut driver for easy installation and removal, reducing the risk of cross threading and damage to the gun.
The bushings are designed for multiple reuses and can be paired with optional O-rings to keep grips tight and protect against shock and abrasion.
Specifically made for 1911 models, these bushings require the Challis Oversize Thread Bushing Tap for installation and are suitable for grips not less than 0.180" thick.