Added a few accessories to a customer’s Razorback. I fit the KKM Precision threaded .40S&W barrel and Briley spherical bushing. Internally there is a GI pattern Springco recoil reducer. And on the muzzle is a Gemtech Blackside 45. The barrel is threaded with the standard .578″x28tpi threading, so the Blackside can go from its .45ACP host to this .40 S&W host, without having to change pistons.