1808: Rock Island Model 1911 A1 in 45 ACP with 5" Barrel. This semi-auto pistol is modeled after the military version of the Colt 1911 A1 and it features a grip safety, a manual thumb safety, fixed sights, a parkerized finish, smooth wood grips and two magazines. The gun is in very good condition and it comes in its original box. Estimated Value: Low: $400 High $500