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...

Mark IV Pistol Competition Kits with 19.22 Flat Trigger This kit includes our Accurizing Kit for the Ruger MK IV Pistol and Bolt Tune-Up Kit for MKII, MKIII, MK IV, and 22/45. The Pistol Competition Kit is designed to produce a crisp, clean 2.25 trigger...

Volquartsen Ruger Mark IV Accurizing Kits with 19.22 Flat Trigger The complete drop-in kit comes complete with our CNC Machined Disconnector, Target Hammer, Hammer Bushing, Target Sear, Target Trigger with plunger and spring. It also comes with pretravel...

Bolt Tune Up Kit for Ruger MKII, MKIII, MKIV, and 22/45 Improve the reliability of feeding, firing, and ejecting on your pistol... Eliminate light strikes and stovepipes. This very simple upgrade, replaces the mass production stamped sheet metal parts in...

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

Bolt Racker Handle for Ruger Mk I, II, III, IV and 22/45Study the Pictures to Match Your Bolt to the Correct "Type" Bolt Racker  The Bolt Racker Handle makes cocking and clearing the action SO EASY. Install it either left or right handed and we have...

Volquartsen 19.22 Flat Trigger The 19.22 Trigger for Ruger MKII, MKIII, and MKIV enhances your shooting experience. It is designed to bring the world-class 1911 trigger feel to the Ruger MK series. Its mechanical advantage provides a crisp 90-degree...

Accelerator Thumb Ledge for Ruger Mark IV 22/45 Provides stability and control for follow-on shots Encourages proper grip Simple, non-permanent installation TANDEMKROSS’s new Accelerator Forward Thumb Ledge helps improve grip and control. With...

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...

Pac-Lite Compensator for 22 LR The PAC-LITE Compensator is designed to complement TacSol PAC-LITE Barrel upgrades for Ruger® Mark series and 22/45® pistols. Engineered with 360° ports, these compensators effectively reduce muzzle rise while...

Ruger MKIV Frame Lug This lug is precision machined for improved fit. Slight variances to the factory lug (as shown with the yellow circle in the additional image) can cause unnecessary wear to the Mark IV upper as well as aftermarket uppers like the...

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...

The Titan Extended Magazine Release for Ruger® Mark IV™ 22/45™ is a simple, drop-in replacement for the smaller factory magazine release, and offers significantly more surface area and height to boost the consistency and speed of magazine...

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...

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 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...

Mark IV™, Mark III™ & 22/45™ Picatinny Rail Factory 1913 style picatinny rail for Mark IV™, Mark III™ and 22/45™. Rail fits firearms with factory pre-drilled receivers. Includes three screws. (Does not fit Mark I and Mark II™ pistols.) Genuine...

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 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 Gold* Trigger fits Ruger MKII, MKIII, and MKIV Pistols and 22/45CNC-Machined Target Trigger in *Gold Colored TiN Adjusts for Pre-Travel and Post-Travel - The Volquartsen Target Trigger is now available in TiN finish, giving it a distinctive...