1911,Rock Island-Armscor,51421,45 ACP Showing the single result Default sorting Sort by popularity Sort by average rating Sort by latest Sort by price: low to high Sort by price: high to low Sale! IN STOCKRock Island 1911 US GI Standard .45 ACP 5″ Barrel Fixed Sights Parkerized Finish 8rd Mag $504.19 Original price was: $504.19.$317.64Current price is: $317.64. Add to cart