Description

TANDEMIZED Cthulhu Lower for Ruger Mark IV & Mark IV 22/45, Black/Red

The TANDEMKROSS Cthulhu Lower is a fully assembled upgrade lower designed for Ruger Mark IV and Mark IV 22/45 pistols. Built with a metallic grip frame and pre-installed TANDEMKROSS performance parts, this drop-in lower is made to improve durability, control, handling, and overall rimfire pistol performance.

This Black/Red configuration features a black frame with red accessories for a competition-inspired look. The enlarged trigger guard, hooked front guard, textured backstrap, extended controls, and upgraded trigger components make it a strong choice for target shooting, competition builds, and enhanced recreational use.

Specifications

Brand: TANDEMKROSS
Model: #TANDEMIZED Cthulhu Lower
Manufacturer Part Number: TK26N0461BRY1
UPC: 657768293160
Item Number: 199007
Color: Black/Red
Platform: Ruger Mark IV and Ruger Mark IV 22/45
Material: Metallic lower frame construction
Configuration: Fully assembled upgraded lower
Installation: Drop-in ready
Serialized: No

Benefits

Replaces the factory plastic lower with a stronger metallic grip frame
Arrives fully assembled with TANDEMKROSS upgraded components installed
Designed to fit virtually all factory and many aftermarket Ruger Mark IV and Mark IV 22/45 uppers
Enlarged trigger guard helps improve usability with larger or gloved hands
Hooked trigger guard provides an additional point of contact for better control
Textured backstrap supports a more secure and comfortable grip
Single takedown screw helps reduce movement between the upper and lower
Ideal for rimfire competition, target shooting, and performance-focused Mark IV builds