Description Volquartsen Accurizing Kit, Mark 4 IV, NO Trigger Want to use your own or a different trigger? Just buy the lock work with this kit! The complete drop-in kit comes complete with: -CNC Machined Disconnector -Target Hammer, Hammer Bushing -Target Sear, Sear Spring -Target Trigger with plunger and spring *also comes with pretravel and overtravel adjustments. The Accurizing Kit for the Ruger MK IV will provide a crisp, clean 2.5lb trigger pull. This kit will eliminate the magazine disconnect. If your pistol says “Ruger Mark IV” anyplace this kit fits it. Kit fits all variations of the Ruger MK IV (including 22/45) Hammer and Sear are wire EDM Cut from A2 Tool Steel Includes allen wrenches Includes medium strength loctite Complete installation instructions are available online Options WITH triggers here UPC: 810162017453 Model: VC4AK-NT