Rock Island Armory GI Standard FS M1911-A1 .45 ACP, 5-Inch Government-Size Parkerized Pistol
This Rock Island Armory GI Standard FS brings classic M1911-A1 styling together with modern manufacturing in a full-size, Series 70-pattern pistol chambered in .45 ACP. Built on a 4140 carbon-steel frame and forged slide, it offers faithful GI aesthetics—right down to the double-diamond hardwood grips—while maintaining full parts interchangeability with U.S.-spec 1911 components. A durable Parkerized finish, crisp single-action trigger, and factory 8-round magazine make this example a ready shooter or an ideal base for future customization.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Condition: Excellent – Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling – Sharp lands and grooves.
Specific Condition Notes: Minor blemishes and light surface scratches are visible on the Parkerized finish; they do not affect function or integrity.
What’s Included
- Soft carry case
- Rock Island Armory 1911 A1/A2 pistol user manual
- 1× factory steel 8-round .45 ACP magazine with polymer bumper pad
Rock Island Armory machines both the frame and slide from 4140 carbon steel, then applies a manganese Parkerized finish that resists corrosion and reflects the subdued look of original service pistols.
The Government-length 5-inch barrel features a 1:16-inch right-hand twist and is also 4140 carbon steel, giving the pistol proven durability and consistent accuracy.
Series 70 internals mean the GI Standard FS omits a firing-pin safety, resulting in a straightforward, clean single-action trigger pull. The solid, mid-length trigger and spur hammer maintain the traditional profile.
Factory-installed fixed three-dot combat sights—staked blade front and dovetailed rear—offer a practical sight picture without disrupting the pistol’s classic lines. Rear vertical cocking serrations aid in slide manipulation.
Manual thumb safety, grip safety, half-cock notch, and disconnector provide the traditional suite of 1911 safeguards, while full compatibility with standard 1911 parts makes upgrades simple.