MASTERPIECE ARMS DEFENDER CARBINE – CA COMPLIANT. American made Semi-Automatic Lever Type Safety Selector Parkerized Finish Twist Rates: (.45 cal.)1:16 RH, (9mm) 1:14 RH 3.8 lb Trigger Pull Exclusive No Jam Technology CNC precision machined for enhanced performance Parkerized finish Side cocking – side charger & Picatinny scope mount rail Includes 30 round magazine, operation & safety manual, & plastic carrying case Lifetime Warranty. 9mm, 10-Rnd. Cap., 16 Brl., 1/2-28 Thread Size