ADAPTIVE TACTICAL, LLC TAC-HAMMER RM4 STOCK FOR RUGER 10/22® The Tac-Hammer® RM4 Stock is the most advanced and versatile stock available for the extremely popular Ruger® 10/22® rifle. This innovative stock is loaded with more features than any other on the market. The removable barrel insert provides a custom fit for both standard tapered barrels and .920"" bull barrels. Patented Stowaway™ accessory rail is concealed in the forend. When reversed, the rail is available for a bi-pod or other accessories. Get custom length-of-pull for proper fit and improved performance with the adjustable M4 type butt-stock, equipped with ambidextrous storage compartments for two spare Ruger rotary magazines. The pistol grip is designed to fit the spring-loaded Tac-Hammer® Monopod for increased stability (sold separately). Tac-Hammer® Monopod 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. NOTE: Take Down Screw is not included. Rifle and Barrel Components not included SPECS Accommodates both standard and bull barrels Stowaway™ accessory rail hidden in forestock Adjustable rear stock with magazine storage Durable reinforced polymer construction TacTRED™ monopod compatible Made in the U.S.A. Weight: 2 lbs 6.34 oz LOP: 10.25" - 14.75"