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 for better grip and control. - This oversized,...

Eagles Talon Extractor for Ruger 10/22 At a Glance: Machined from hardened tool steel to last a lifetime Unique positive "hook" design grabs casings securely and surely Reduces failures-to-eject and "stove-pipe" malfunctions The TANDEMKROSS...

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...

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...

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...

TK Bolt Keeper Extended Bolt Release fits Ruger 10/22®- A drop-in upgrade for your 10/22 Bolt Release, the TK Bolt Keeper mounts a nice big KNOB to the bolt release... Making it easy to find and reliable to operate. Tip the knob in to release and out...

"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 Ruger® MK series magazines with aftermarket...

Upgraded 10/22 Receiver Cross PinsThis (2-Pack) includes: Upgraded pins won’t fall out when working on your gun Steel pin is highly durable Spring-loaded ball detent holds pin in place securely, installs easily If you’ve upgraded your...

 The TANDEMKROSS “Thunder” Hammer for SW22® Victory™ is a drop-in replacement hammer that significantly reduces SW22® trigger pull weight. The “Thunder” SW22® Victory™ hammer is precision-machined from hardened S7 tool steel for improved...

Tandemkross "Victory" Trigger Replacement for Browning BuckmarkFeatures:Flat faced for better control and feelTextured Face for better grip100% Adjustable for pretravel and overtravelLightweight skeletonized designFits All Browning Buckmark Pistols - The...

Halo Charging Ring for SW22 Victory Pistols   The Halo is an easy to grip "pull ring" that attaches to your SW22 Victory bolt. It makes it easy to pull the bolt back for anyone... Big or small, strong or weak. Easily rack the bolt to cock...

SW22 Victory Race Gun Kit Black- All of the most popular SW22 Victory 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"...

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 method uses an O-ring for finger-tight,...

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 method uses an O-ring for finger-tight,...

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 Follower for the Ruger® MK series is a drop-in upgrade...

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 that slips on and secures with the original 4 grip...

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...

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 placement for better grip and control. - This oversized,...

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 placement for better grip and control. - This oversized,...