The B5 Systems Collapsible Precision Stock (CPS) Medium. Building upon the venerable cheek profile of the B5 SOPMOD and Bravo stocks the Precision stock incorporates an adjustable cheekpiece and buttpad while fitting Mil-Spec carbine receiver extensions. Features internal tensioners ambidextrous fixed and quick disconnect sling mounts gross length of pull adjustment via pull down with lockout underside M-LOK accessory mount and color matched hardware. The CPS Medium fully collapsed will clear the M4 charging handle. Proudly made in the USA. - FEATURES - Adjustable cheek weld and buttpad with precision dials. - Mounting slots for Accessory Cheekpiece. - 10 internal tensioners. - Color matched machined hardware. - Fixed sling mounts. - Steel anti-rotational QD mounts. - No slip cushioned buttpad. - Gross adjustment pull down lever with lockout feature. - Underside M-LOK accessory attachment. - Made of Mil-Spec materials and finishes. - Fits Mil-Spec carbine receiver extensions (M4/a5/M110K). - SPECS - Weight 20.65 oz. - Length 8.5 in. - Width 2.00 in. - Height 4.35 in.