TANDEMKROSS Steel Hammer Bushing for Ruger MKIII & MKIII 22/45 Silver. There are instructions on the internet showing the use of washers and other parts but this is unreliable and unsafe Use an actual part that is designed for the job. This bushing lets the hammer move properly and at the correct speed. You will be pleased with the fit and final result with this bushing. If you know how to clean this gun you can easily remove the disconnect. Removing the disconnect allows the magazines to fall free allows them to seat properly and does allow the gun to fire with the magazine out for tactical competition and self-defense scenarios. Check to see if your state requires the magazine disconnect installed if the firearm is ever resold. Specifications for TANDEMKROSS Steel Hammer Bushing Ruger MKIII & 22/45: Manufacturer: TANDEMKROSS Finish: Stainless Steel Gun Model: Ruger Mark III 22/45 Ruger Mark III Additional Features: Supported Model List - MKIII -ALL MODELS Features of TANDEMKROSS Steel Hammer Bushing Ruger MKIII & 22/45: Magazines will slip right out Easier takedown and cleaning Can reduce failure to feeds Comes with colored installation instructions Supported Model List: MKIII -ALL MODELS MKIII 22-45 MKIII 22-45 Competition MKIII 22-45 Government Target MKIII 22-45 Target MKIII Competition MKIII Government Target MKIII Target MKIII LITE MKIII Hunter Package Contents: TANDEMKROSS Steel Hammer Bushing Ruger MKIII & 22/45 What firearm models does the manufacturer say TANDEMKROSS Steel Hammer Bushing Ruger MKIII & 22/45 is compatible with? The manufacturer says that TANDEMKROSS Steel Hammer Bushing Ruger MKIII & 22/45 is compatible with Ruger Mark III Ruger Mark III 22/45TANDEMKROSS TK04N0002SSL1: Steel Hammer Bushing for Ruger MKIII & MKIII 22/45 Silver