The Springfield Armory® Ronin® in .45 ACP combines a legacy of service with the features modern shooters demand. Built on a foundation of strength, the Ronin sports forged steel slides and frames — carbon steel in the former and stainless steel in the latter — and a hammer-forged barrel for durability. The pistol features a standard 5" barrel, traditional recoil spring assembly and barrel bushing, and a tactical rack rear sight with a fiber optic front. The result is a traditional, yet cutting-edge 1911 ready for a lifetime of service.