38 Super/9mm/.380 ACP conversion for GI 1911 FS

Rock Island Armory M1911-A1 Rock Standard FS 45 ACP Semi-Auto Pistol

GI Standard FS Nickel-38Super-Slide

Rock Island Armory M1911-A1 GI 45 ACP Semi-Auto Pistol

Were the early Colt 1911 government models Parkerized? I have one from 1918 which has a brownish finish. - Quora

Rock Island Armory 1911 TCM TAC Ultra MS 22TCM/9MM Combo - Pistol - 51961 In Stock

38 Super Pistols for sale

Armscor Rock Island 9mm Handgun Deals

GI Standard FS-9mm/38 Super-Slide

PT 1911 9mm to .38 Super conversion anyone done it?

Caliber conversions for RIA 1911's between 9mm, 22TCM, 38 Super, 45acp - Part 3