The Springfield Armory SPG PX9120LAOSPAC Ronin is a 1911-platform .45 Auto built for shooters who demand match-grade accuracy and modern optics capability while retaining classic ergonomics, featuring a 5" forged stainless steel match-grade barrel with a 1:16 twist and a fully supported ramp to deliver tight groups and reliable feeding, a forged carbon steel blued slide machined optics-ready to accept the factory-installed Viridian RFX11 green dot with Instant-On technology and long run time for fast, intuitive aiming, and a forged aluminum alloy frame finished in satin aluminum Cerakote that saves weight without sacrificing durability. The Ronin series blends traditional 1911 controls with a commander-length GI recoil system and crossed cannon wood laminate grips for a familiar feel at the range or in competition; fiber-optic front and black serrated rear sights remain usable if you choose to run irons-only. Gear-Pac models include a heavy-duty nylon pistol bag for transport and storage plus additional magazines to keep you shooting longer between reloads. Weighing 41 oz with an overall length of 8.6" and 5.5" height, this semi-auto pistol is suited for range training, target shooting, and carry-ready competition, and requires transfer through an FFL.