9mm Luger caliber; Internal Hammer Fired SAO; Max-capacity micro-compact perfected for concealment; Best-in-Class Trigger, Hammer-forged barrel, Polished chamber and ramp ensure feed reliability; Advanced ergonomics for control and shootability; Slide cut for Shield RMSc and Holosun K-series; Included screws make it easy to mount many MRD's; Internal hammer-fired SAO trigger; Smooth 5-lb trigger pull; Optics Ready; 11-rd magazine with pinky and flush-fit base pads, 15-rd magazine extends frame for a full-hand grip; In-mold stippled grip