Rock Island Armory M1911-A1 FS Hybrid .45 ACP, Government 5-inch, Two-Tone with Colt MK IV Series 80 Slide
This full-size, parts-assembled 1911 pairs a Rock Island Armory M1911-A1 FS steel frame with a Colt MK IV Series 80 Government Model slide for a distinctive hybrid build. The 5-inch barrel, GI-type fixed sights, and standard ejection port keep the configuration classic, while the polished blued slide over a matte gray/phosphate frame creates a purposeful two-tone look. A long, skeletonized three-hole trigger and light-colored checkered synthetic grips complete the setup. The frame bears the AP INTL – Pahrump NV – Philippines import mark.
Condition
Overall Condition: Fair condition, showing extensive signs of prior use and handling.
Bore Overall Condition: Fair - Generally clean, some residue or smudges, slight corrosion.
Bore Rifling: Good Rifling - Intact, well-defined lands and grooves.
Specific Condition Notes: This pistol shows major signs of wear with finish loss and areas of rust. The rifling remains in good standing.
What’s Included
- 1x 7-round flush-fit magazine (steel body; unmarked brand)
This Government-size 1911 combines components from two well-known sources: a Rock Island Armory M1911-A1 FS frame and a Colt MK IV Series 80 Government Model slide. The result is a hybrid build that maintains the classic 5-inch barrel format and traditional 1911 handling.
The slide features rear-only vertical serrations and a standard ejection port, topped with GI-type fixed sights for a straightforward sight picture. Its polished blued finish contrasts intentionally with the matte gray/phosphate finish of the steel frame.
Controls are familiar 1911 fare with single-action-only operation, a single-sided thumb safety, and a grip safety. A long, skeletonized three-hole trigger provides a modern touch within the otherwise GI-style configuration.
Light-colored, double-diamond checkered synthetic grips offer a secure hold and reinforce the two-tone presentation. The frame carries the AP INTL – Pahrump NV – Philippines import mark, consistent with Rock Island Armory’s Philippine manufacture.
Chambered in .45 ACP, this full-size pistol uses a 7+1 capacity and comes with a flush-fit 7-round magazine.