Wide-body double-stack 2011 frames are the foundation of every serious USPSA Open and Limited build. Whether you're starting a custom pistol from scratch or replacing a worn frame on a proven race gun, frame selection drives everything downstream — grip angle, magwell geometry, trigger guard clearance, and sight radius. Aluminum frames deliver weight savings that help Open shooters manage muzzle flip on 9mm Major; stainless options handle the additional stress of high-volume .38 Super and .40 S&W round counts. Full-size Government-length configurations dominate Open division, while Commander-length frames see use in Limited and occasionally Carry Optics. Many frames ship with integral magwells machined directly into the grip, eliminating a separate fitment step. Key builders rely on SVI, Limcat, Caspian, Cheely, Akai, and STI frames as the chassis for championship-winning handguns. Grip-only frames allow smiths to transplant uppers from existing guns without sacrificing a proven slide-to-frame fit. Fast same-day shipping on most orders at Shooters Connection.