The M&P Shield X focuses on versatility. Featuring aggressive front and rear serrations; reversible magazine catch; a longer grip to maximize capacity; improved ergonomics make for a better fit and feel in the hand for added comfort; Ameriglo Trooper LumiGreen night sight front, Blacked-out serrated U-Notch rear sight. and target crown barrel. Customize to your needs with a flat-plane RMSc/K optic cut and front rail. Includes one 13-round and one 15-round magazine. This model features a manual thumb safety.