Cthulhu Grip Frame fits All Ruger MKIV Barrels No FFL Required All Aluminum Lower Frame for Ruger MKIV Completely Assembled w/TandemKross Competition Parts Drop-In Ready... Fits All Ruger Mark IV Barrels Drop-In Ready... Fits All Ruger Mark IV 22/45...

Cthulhu Frame fits All Ruger MKIV Barrels No FFL Required All Aluminum Lower Frame for Ruger MKIV Completely Assembled w/Tandem Kross Competition Parts Drop-In Ready... Fits All Ruger Mark IV Barrels Drop-In Ready... Fits All Ruger Mark IV 22/45...

Volquartsen Competition Bolt for Ruger Mk II, III, and IVEliminate stovepipes, failures to fire and improve the overall performance of your Ruger Mark II, III*, IV or Mark IV 22/45 pistol with this Competition Bolt! (* MKIII must remove chamber indicator...

Krossfire Bolt for Ruger® Mark IV™ & 22/45™ A TandemKross Bolt with Black DLC Finish Assembled with TandemKross Firing Pin, Extractor, and Guide Rod Includes Integral Halo Charging Ring for Improved Clearing and Charging Upgrade...

Pistol Competition Kit for MK IV, Gold Trigger Trying to figure out which parts are needed to take the Ruger MK IV or MK IV 22/45 to the next level? Look no further than the Pistol Competition Kit. This kit includes our MK IV Accurizing Kit and Bolt...

Volquartsen Mk IV and Mk IV 22/45 Competition Kit Also Converts Mk IV and Mk IV 22/45 Pistols to Eliminate the Magazine Disconnect   Trying to figure out which parts are needed to take the Ruger MKIV and 22/45 to the next level? Look no...

Volquartsen Mk IV and Mk IV 22/45 Competition KitAlso Converts Mk IV and Mk IV 22/45 Pistols to Eliminate the Magazine Disconnect  Trying to figure out which parts are needed to take the Ruger MKIV and 22/45 to the next level? Look no...

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...

Laminated Target Grips for MK IV 22/45 YES... Target Grips for the 22/45! They feature thumb rest, heel rest and finger grooves. Designed to give the shooter a relaxed, steadier hold. CNC-machined from laminated wood and available in a variety of colors...

Volquartsen Ruger MK IV® Accurizing Kit - Stnls TriggerThis 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...

Get A Grip Kit for Ruger MKIV 22/45TANDEMKROSS offers the ultimate grip upgrade for Ruger® Mark IV™ 22/45™: the Get a Grip Kit! Includes three grip-boosting upgrades Forward and rear thumb ledges work together to create ideal hand...

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, Black Target Trigger with plunger and spring. It also comes with pretravel and...

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"...

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...

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...

Volquartsen MKIV 22/45 Mag Release plus 5 Magazine Base Pads- The ultimate competitors edge! Our new Extended Magazine Release for the MKIV and a 5-Pack of MKIV 22/45 Magazine Base Pads. The new Mag Release allows magazines to sit a little higher for...

Volquartsen Magazine Base Pad fits Ruger MKIV 22/45- Our new Magazine Base Pads for the MK IV 22/45 make magazine insertion and removal quicker and easier-for lightning fast reloads. CNC-machined from billet aluminum, these base pads will make those days...

Volquartsen Triggerless Accurizing Kit fits Ruger MKIV (No Trigger Included)- For those who have a different preference for the trigger they choose, this triggerless kit has everything you need... Except the Trigger. The kit comes complete with our CNC...

Volquartsen Target Sight Setsfor Original LLV and New MKIV LLV Uppers- Target Sights Set (Front and Rear) to fit Volquartsen LLV and LLV-4 Black Mamba Uppers. Includes Patridge Front Sight and Target Adjustable Rear Sight. Fits Volquartsen 4.5 inch LLV...

Volquartsen Target Sight Setsfor Original LLV and New MKIV LLV Uppers- Target Sights Set (Front and Rear) to fit Volquartsen LLV and LLV-4 Uppers. Includes Patridge Front Sight and Target Adjustable Rear Sight. Fits Volquartsen 6 inch LLV and LLV-4 and...