The FN 510 MRD carries 15+1 rounds of 10mm Auto at the ready, giving you the stopping power you need to face any threat. But holding all the power and capacity doesn't matter if you can't put rounds on target, so it's made for pinpoint control - red dot-ready, with a crisp trigger and unrivaled ergonomics. All the elements for a premium shooting experience are on-board, purpose-built to control maximum energy with minimal effort. Specifications: Caliber: 10mm Operation: Double Action, Striker-Fired Magazine Capacity: 2- 15 Round Weight: 31.0 oz Barrel Length: 4.1" Overall Length: 7.7" Twist Rate: 1:16" RH Height: 6" Width: 1.45" Trigger Pull: 5.5 lbs - 7.7 lbs Sight Radius: 6.1" Primary Features: 15+1 rounds of 10mm Auto Low-profile optics mounting system Precision-tuned trigger with clean break Enhanced grip frame for unmatched control Slide: Slide cut to mount most optics, no gunsmith needed Machined steel with front and rear cocking serrations, loaded chamber indicator Driftable steel sights co-witness with most MRD optics High-endurance conical striker Barrel: 4.1" cold hammer-forged, target crowned for enduring accuracy Polished feed ramp and chamber for feed reliability Frame: Superior balance and grip texture dampen recoil and allow master control Target-grade trigger breaks clean at approximately 6 lbs Interchangeable backstraps MIL-STD 1913 rail Operating Controls: Fully ambidextrous slide stop lever and magazine release Magazine: Two 15-rd flush fit magazine Low-friction follower; polymer base with nickel-coater steel body Ships With: Two interchangeable backstraps Two 15-rd magazines Four MRD mounting plates Owner's manual Locking device Premium zippered case