Custom build bonus - TANDEMKROSS Tandemized Ruger Mark IV and Mark IV 22/45 Cthulhu Lower

I bought this for a custom mk4 build and like the other tandemkross items I have bought before this did not disappoint. Fit and finish are excellent and it has all of the improved parts installed with no assembly required. Fit up to a Tac Sol upper is flawless and all around could not be happier. The price is high but if you were to piece out each part this frame does save you some money.

Word of warning, this frame does not have the quick detach takedown button and instead ops for an allen head set screw to secure the upper and lower.