The Tisas 1911 Carry B9R Double Stack 1911 takes the iconic 1911 platform to the next level, offering cutting-edge performance at an unbeatable value. This full-sized semi-automatic handgun is designed for shooters who demand both power and precision without compromising on quality. Optic Mount Co-Witness, Direct 507k/RMSc Footprint, M3 x 0.05 treads. Accepts 70 Series Colt and STI 2011 compatible parts. Includes hard case, two magazines, cleaning kit and owner's manual. Tisas 1911 B9R Double Stack Carry Frame 9mm Luger 17+1 4.25" Black QPQ Bull Barrel, QPQ Tenifer Cerakote Optic Cut/Serrated Steel Slide, QPQ Tenifer Cerakote Steel Frame w/Accessory Rail & Beavertail