S&w m&p fpc is compatible with m&p pistol double-stack magazines.The gun features integrated recoil buffer system; reversible magazine catch; threaded muzzle with thread protector; 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, one 17rd and two 23rd magazines.Action: Semi-AutoCaliber: 9mm LugerBarrel Length: 16.25"Capacity: 17+1Trigger: FlatOal: 16.37" - 30.37"Weight: 5.03 lbsStock Description: AdjustableMuzzle: ThreadedReceiver Material: AluminumSights: Optic ReadyBarrel Description: SteelTwist: 1:10"Barrel Length Range: 16" to 16.99"Weight Range: 5 lbs to 5.99 lbsStock Finish Group: Black