The Ruger MKIV is a renowned choice among rimfire shooting enthusiasts, but even the best can be enhanced. Introducing the TANDEMKROSS "blast shield" Magazine Disconnect replacement - an essential upgrade for your Ruger MKIV or MKIV 22/45. This innovative component allows for the safe removal of the Magazine disconnect, transforming your shooting experience with improved performance for both competitive events and casual plinking. The "blast shield" is engineered with a unique design that enables your pistol to fire regardless of whether a Magazine is inserted, ensuring seamless operation. It also enhances Magazine alignment and acts as a protective barrier for the sear and hammer, safeguarding them from debris and wear. This simple, drop-in part significantly elevates the reliability and efficiency of your firearm. Compatible with the Volquartsen sear and disconnector, the "blast shield" is specifically crafted to integrate seamlessly with the factory hammer, ensuring optimal performance. Upgrade your Ruger MKIV or 22/45 with the TANDEMKROSS "blast shield" Magazine Disconnect replacement and experience a new level of precision and reliability in your shooting endeavors. Enables the secure removal of the magazine disconnect Ensures accurate magazine alignment Shields protect the sear and hammer from debris, thereby enhancing performance