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

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

Powder River Precision Ruger 10/22 Upgrades

Powder River Precision Rubicon ICON .22LR Receiver

PRP Ruger 10/22 Triggers, Bolts, and Other Parts Powder River Precision makes many upgrade parts for Ruger 10/22 rifles. However, some parts matter more than others. If you are researching Powder River Precision Ruger upgrades, this guide explains what the main parts do. It also explains who benefits most from each upgrade. Importantly, this article … Read more