S&W M&P FPC is compatible with M&P Pistol double-stack magazines. The gun features integrated recoil buffer system; reversible magazine catch; in-stock magazine storage w/quick-release tab system; horizontal folding mechanism with locking latch, design doesn't interfere with top-mounted optics and charging slide/handle doubles as retainer when folded. Includes carrying bag with additional storage and Velcro straps; four interchangeable palmswell grip adapters, three 10rd mags.*Accepts any M&P full size or compact double stack pistol magazine. Includes three 10rd magazines, four interchangeable palmswell grip inserts and soft case.