The Briley Government 0.580 Inch Drop-In Bushing and Ring features a separate, ultra-hard, spherical, internal ring that pivots on its horizontal axis inside the precision-machined bushing. Constructed from 17-4 stainless steel, the bushing pairs with a 17-4 stainless steel ring that is titanium nitrited to Rc 60. The drop-in model has a .698″ (17mm) outside diameter, allowing seamless installation without requiring fitting.
This design eliminates barrel spring while delivering the closest fit and longest wearing performance available in a barrel bushing setup. The drop-in bushing and ring requires no fitting on the outside diameter, making it ideal for 1911 Government-model shooters seeking improved accuracy and reliability.






