SpecsCaliber: .45 ACPOperation: DOUBLE ACTION, STRIKER FIREDMag Capacity: 10 or 15/18 Rd.Weight: 31.0 ozBarrel Length: 4.71"Overall Length: 8.3"Twist Rate: 1:16 RHHeight: 6"Width: 1.45"Trigger Pull: 5.5 - 7.7 lbsSight Radius: 6.1"Primary Features18+1 rounds of .45 ACPLow-profile Optics Mounting SystemPrecision-tuned trigger with clean breakEnhanced grip frame for unmatched controlSlideSlide cut to mount most optics, no gunsmith neededMachined steel with front and rear cocking serrations, empty chamber indicatorTritium lamp steel dovetail sights, co-witness with most MRD opticsHigh-endurance conical strikerBarrel4.71-inch cold hammer-forged, target crowned for enduring accuracyPolished feed ramp and chamber for feed reliabilityThreaded .578x28 to mount compensators and suppressorsFrameSuperior balance and grip texture dampen recoil and allow master controlTarget-grade trigger breaks clean at approximately 6lbsInterchangeable backstrapsMIL-STD-1913 railOPERATING CONTROLSFully ambidextrous slide stop leverand magazine releaseMAGAZINEOne 18-rd extended and one 15-rd magazine or two 10-rd magazinesLow-friction follower; polymer base with nickel-coated steel bodySHIPS WITHTwo interchangeable backstrapsOne 18-round and 15-round magazines or two 10-round magazinesFour MRD mounting platesOwners manualLocking devicePremium zippered case