YoDave CZ-457 Trigger Spring Kit  With this kit, you can reduce the CZ-457 trigger pull to approximately half of what the factory spring will adjust down to. Used in conjunction with the sear adjustment screw located on the front of the trigger...

Remington 870 Trigger Tune Spring Kit This kit comprises of both a replacement hammer spring as well as five different trigger springs ranging in pull weight from 1.25lb to 5lb. The hammer spring is made from stainless steel, and the trigger springs are...

The Ultimate Trigger Kitfor the Ruger MKIV & MKIV 22/45 RedThis “Ultimate” Kit for Ruger® Mark IV™ & Mark IV 22/45™ is a matched set of upgrade parts - DO NOT use any other brand of sear and hammer with the TANDEMKROSS...

Colt SA Revolver RP Shooters Pak This Shooter's Pak includes a Wolff reduced power mainspring, a reduced power sear/bolt spring (flat-type), extra power base pin spiring and stainless steel hand ejector spring. These kits offer great improvement in the...

Colt SAA Revolver RP Shooters Pak This Shooter's Pak includes a Wolff reduced power mainspring, a reduced power sear/bolt spring (wire-type), extra power base pin spiring and stainless steel hand ejector spring. These kits offer great improvement in the...

YoDave CZ-455 Trigger Shim and Spring KitImproves the Trigger Pull of CZ-455, CZ-452 and BRNO Model 2, 4, and 5 Rifles This kit removes the creep and lightens the trigger pull weight by the use of shims and new springs. Kit includes 4 shims and 4 new...

The Ultimate Trigger Kit for the Ruger MKIV & MKIV 22/45 BlackThis “Ultimate” Kit for Ruger® Mark IV™ & Mark IV 22/45 is a matched set of upgrade parts - DO NOT use any other brand of sear and hammer with the TANDEMKROSS...

Volquartsen Ruger MK IV® Accurizing Kit This complete drop-in kit comes with our CNC Machined Disconnector/Trigger Bar, Target Hammer, Hammer Bushing, Target Sear, Target Trigger with plunger and spring. It also comes with pretravel and overtravel...

Ruger MKIV 22/45 Race Gun Kit Black- All of the most popular MKIV 22/45 Pistol accessories from Tandemkross, favorites in speed shooting sports like the "Rimfire Challenge" and "Steel Challenge". Here's what you get:1 "Halo" Charging Ring1 "Victory"...

Blast Shield Mag Disconnect Replacementfor Ruger Mark IV and Mark IV 22/45 Pistols.- This little replacement part shields the sear and hammer from debris, improves magazine alignment, and allows your MKIV to fire whether or not the magazine is inserted...