The bolt release pad is CNC machined from 416 stainless and extends

die mittels mitgeliefertem Loctite gesichert werden können

Only the Costa handguards have attachment points on top (left and right) for these picatinny rails to screw on

The Volquartsen Bolt Tune-Up Kit for the Ruger MK I

Accurizing Kit für Ruger MK IV und MK IV 22/45 # Topseller The bolt release pad isThe complete drop in kit comes complete with a CNC Machined Disconnector, Target Hammer, Hammer Bushing, Target Sear, Target Trigger with plunger and spring. It also comes with pretravel and overtravel adjustments and includes medium strength Loctite to secure the adjustment screws. The Accurizing Kit for the Ruger MK IV will provide a crisp, clean 2. 25lb trigger pull. This kit will eliminate the magazine disconnect. SpecsThis kit fits all variations