Rock Island Armory M1911 A1 GI Standard CS .45 ACP Compact, 3.5 in Barrel, Parkerized, Series 70, Blue/Black Grips
This Rock Island Armory M1911 A1 GI Standard CS is a compact, Series 70-pattern .45 ACP built on a cast 4140 steel frame with a forged 4140 steel slide and a parkerized finish. It features the Officer/CS format with a 3.5-inch barrel and shortened grip, plus aftermarket blue/black patterned grip panels. It ships with two magazines and the RIA factory hard case with a matching label for item 51416.
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: This firearm is in great shape. There are some minor scratches and blemishes present.
What’s Included
- Rock Island Armory factory hard case with matching label (GI Standard CS, item 51416)
- 1x 8-round steel single-stack 1911 magazine
- 1x 7-round steel single-stack 1911 magazine
The GI Standard CS format delivers a compact 1911 profile with a 3.5-inch barrel and shortened grip, chambered in .45 ACP. Capacity is 8+1 with compatible single-stack magazines, and this pistol includes both 8-round and 7-round mags.
Construction is robust with a cast 4140 steel frame paired to a forged 4140 steel slide, all finished in parkerized. The slide is configured with rear vertical serrations only and a lowered/relieved ejection port.
Controls follow the Series 70 pattern with no firing-pin block, operating in single-action, short-recoil. It includes a beavertail grip safety with memory pad, a left-side thumb safety, a solid short trigger, and a Commander-style skeletonized hammer.
Sighting is traditional GI-style with a small front blade and a shallow rear notch. Markings include the Rock Island Armory crest on the right slide, a frame rollmark reading "M1911 A1 - CS," and a barrel hood marked "CAL.45 ACP." Importer engraving appears on the dustcover, and the pistol is made in the Philippines.
This example is customized with aftermarket blue/black patterned grip panels that provide a distinctive look while maintaining the GI Standard CS feature set. It comes with the Rock Island Armory factory hard case carrying a matching label for this model and part number.