TANDEMKROSS Cthulhu Lower Build Options

Three Ruger Mark IV 22/45 pistols built with TANDEMKROSS Kraken and Cthulhu lowers

The TANDEMKROSS Cthulhu lower gives Ruger Mark IV 22/45 owners a different path than upgrading the factory polymer lower one part at a time. It comes assembled with the trigger, safety, thumb rest, slide lock, magazine release, and other controls already installed. Earlier versions of this product used the TANDEMKROSS Kraken lower name. My original … Read more

TandemKross TKX22 Light Rifle Review: 3 lb 6 oz Rimfire

FDE TandemKross TKX22 Light Rifle resting on a bench with a suppressor attached at an outdoor range.

I already have a couple of rifles built with TandemKross’s lightweight barrel setup, so I knew what to expect from the TandemKross TKX22 Light Rifle. Even so, the first time I picked up their official 3 pound, 6 ounce version, I was reminded just how absurdly light these rifles feel. It’s not just lighter than … Read more

Ruger PC Carbine & Charger Extractor Upgrade Review

Ruger PC Carbine & Charger Extractor Upgrade Review

TandemKross Eagle’s Talon Extractor Review for Ruger PC Carbine & PC Charger I’ve run a huge amount of bulk 9mm ammo through my Ruger PC Carbine and PC Charger over the years. Both platforms have been reliable, predictable, and boring in the best possible way. However, now that I’m running them suppressed thanks to the … Read more

Eagle Eye Fiber Optic Sights for Ruger Mark Series

TandemKross Eagle Eye Fiber Optic Sight Set for Ruger Mark Series

TandemKross Eagle Eye Fiber Optic Sight Set for Ruger Mark Series If you’re looking to upgrade the stock sights on your Ruger Mark series pistol, the TandemKross Eagle Eye Fiber Optic Sight Set is a noticeable improvement. The fiber-optic rods are bright and easy to pick up, and the tall sight plane makes target acquisition … Read more