The Tac-Hammer® Monopod is designed to fit seamlessly with Tac-Hammer stocks, including the RM4, RM4 Takedown, TK22 Takedown and TK22C stocks for Ruger's® 10/22® rifles. The spring-loaded Tac-Hammer® monopod extends effortlessly with the press of a button, giving shooters a built-in support that extends up to 3 inches. Tac-Hammer® provides a quick, stable, single point rest on any surface and ensures maximum tripod-like stability when used with a front rail-mounted bipod or front rest.