The Enhanced drop-in kit is meticulously designed for the Ruger MK IV, offering a comprehensive upgrade to your firearm's performance. This all-inclusive kit features precision engineered components, including a CNC machined disconnector, target hammer, hammer bushing, target sear and a target trigger equipped with a plunger and spring. With built-in pre-travel and over travel adjustments, you can fine-tune your trigger pull to perfection. The kit also includes medium strength Loctite to ensure the adjustment screws remain securely in place. Experience a significant improvement in trigger responsiveness with a crisp, clean and light pull, while also eliminating the Magazine disconnect for enhanced functionality. Transform your shooting experience with this expertly crafted accurizing kit. The trigger is constructed from black anodized aluminum This kit is compatible with all variations of the Ruger MK IV, including the 22/45 and 22/45 Lite models Designed for Ruger frames The hammer and sear are precision-cut using wire EDM from A2 tool steel Allen wrenches are included Manufactured in the USA