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February 25, 2026Rock Island 51421MA GI Standard FS *MA Compliant 45 ACP Caliber with 5″ Barrel, 8+1 Capacity, Overall Black Parkerized Finish Steel, Beavertail Frame, Serrated Slide & Wood Grip
$361.89
Rock Island 51421MA GI Standard FS *MA Compliant 45 ACP Caliber with 5″ Barrel, 8+1 Capacity, Overall Black Parkerized Finish Steel, Beavertail Frame, Serrated Slide & Wood Grip
2 in stock
The M 1911 GI standard is a great representation of the original US GI combat issue 1911 and is chambered in 45 ACP and built with Rock Island’s exacting engineering standards. Fixed, low profile sights and traditional smooth slim design are perfect for quick pull holster use. A durable parkerized finish gives it a tough, smooth, non-reflective surface. Smooth wood grips offer comfort in both feel and design. The 5″ barrel offers a balanced weight to assist with the accuracy and recoil that made the original 1911 design famous. True to all Rock Island 1911s, the GI Standard comes with a crisp factory 4- to 6-pound trigger for a great experience right out of the box.
| UPC | 4806015515012 |
|---|---|
| Manufacturer | Armscor/Rock Island Armory |
| Manufacturer Part Number | 51421MA |
| Action | Single Action |
| ATF Type | Pistol |
| Barrel Length | 5" |
| Caliber/Gauge | .45 ACP |
| Capacity | 8 + 1 |
| Length | 10.5 |
| Number of Magazines | 1 8 rd. |
| Package Height | 2.5 |
| Package Width | 10.1 |
| Product Type | Pistol |
| Safety | Beavertail |
| Shipping Weight | 3.6 |
| Sights | Fixed GI Style |
| Sights Type | FIXED |
| Slide Description | Serrated |





