Save your fingers and get loaded more efficiently with a Hilljak Magbar, designed for use with Smith & Wesson M&P 15-22 Magazines 22LR without load assist buttons. This innovative tool is a must have if you have a California compliant magazine made by Smith & Wesson that holds 10 rounds and has a hole in the follower. These magazines are different than non-compliant magazines that have preinstalled load assist buttons on the follower. Note: magazine is not included. Designed and made in USA of 3D printed bio-polymer plastic. Includes 1 year Hilljak USA warranty with free replacement.