TandemKross

Cornerstone Safety Thumb Ledge for Ruger® Mark IV Black - 1911 Style Thumb Safety for Ruger Mark IV. Replaces factory thumb safety without modifying the internals, and improves hand placement...

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...

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...

"Get a Grip Kit" for Ruger® MKIV™ 22/45™The “Get a Grip” Kit includes the TANDEMKROSS “Cornerstone” Safety Thumb Ledge, TANDEMKROSS “hiveGrip” and Striplin Custom Gunworks forward thumb ledge in one,...

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...

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...

ChamberMade Repairs .22LR Dry Fire Damage, Solves Feeding and Extraction Problems- When you "dry fire" a .22 rimfire pistol or rifle, the firing pin hits the edge of the chamber¹. This can actually...

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...

TandemKross Pistol Case Black and RedWell Designed TandemKase Pistol Bag fits Ruger MKIV and Others- This new pistol carrying case has all of the features you want in a gun case. Zippered, padded...

TandemKross Pistol Case Black and GreenWell Designed TandemKase Pistol Bag fits Ruger MKIV and Others- This new pistol carrying case has all of the features you want in a gun case. Zippered, padded...

"Green Springs" Magazine Springs for Ruger® MK Series (3-PACK)Shot-peened spring offers longer life than factory springReduces failure-to-feed issuesReplaces old, broken mag springsUpgrade your...

Steel Game Changer Pro Compensator by Tandemkross- Screw on muzzle brake for Ruger MK pistols, SW22 Victory Pistols, Browning Buckmark, and more. Uses existing 1/2x28 muzzle threads. Unique indexing...

Maximus Plus1 Followers for Ruger® MK Series Magazines (2-PACK)- Replacement magazine followers that increase magazine capacity from 10 rounds to 11 rounds. The TANDEMKROSS “Maximus” Plus1...

MarkPro Mag Bumpers for Ruger Mark IV 22/45 (2-Pack)- Package includes two bumper pad magazine bases to install on your factory Ruger MKIV 22/45 magazines. Action Pistol Shooters always install...

Ruger MKIV 22/45 HIVE Grip- An aggressively textured, bee hive patterned, wrap around MKIV 22/45 grip with ergonomic finger grooves and vibration dampening rubber material. This is a one-piece grip...

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"...

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...

Cornerstone Safety and Thumb Ledge for Ruger Mark IV 22/45 Red- 1911 Style Thumb Safety for Ruger Mark IV 22/45. Replaces factory thumb safety without modifying the internals, and improves hand...

Cornerstone Safety and Thumb Ledge for Ruger Mark IV 22/45 Black- 1911 Style Thumb Safety for Ruger Mark IV 22/45. Replaces factory thumb safety without modifying the internals, and improves hand...

Tandemkross "Victory" Trigger Replacement for Ruger Mk IV Silver Features:

Tandemkross "Victory" Trigger Replacement for Ruger Mk IV Silver Features:

Halo Charging Ring for Ruger® Mk III/Mk IV® & 22/45   The Halo is an easy to grip "pull ring" that attaches to your Ruger Mk III/Mk IV bolt. It makes it easy to pull the...

Tandemkross "Victory" Trigger, BlackReplacement for Ruger Mk III and Mk IV 22/45Features at a Glance:Flat faced for better control and feel100% Adjustable for pretravel and overtravelLightweight...

Tandemkross Mark III (22/45) Hammer Bushing for Magazine Disconnect-Stainless SteelCompatibility: MKIII -ALL MODELS MKIII 22-45 MKIII 22-45 Competition MKIII 22-45 Government Target MKIII 22-45...

Game Changer Rimfire Compensator  The Game Changer has gas ports on the top and sides so it stabilizes the muzzle and virtually eliminates muzzle rise. With no ports on the bottom,...

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...

Steel Game Changer Pro Compensator by Tandemkross- Screw on muzzle brake for Ruger MK pistols, SW22 Victory Pistols, Browning Buckmark, and more. Uses existing 1/2x28 muzzle threads. Unique indexing...