Rock Island Armory M1911A1 - MS GI .45 ACP Mid-Size (Commander), 4.25 in Parkerized, 8+1
This Rock Island Armory M1911A1 - MS delivers classic GI styling in a mid-size, Commander-length .45 ACP package. It pairs a cast 4140 steel frame with a forged 4140 steel slide and a matte Parkerized finish for a traditional service-grade build. Fixed GI sights, checkered wood grips with 'U.S.' cartouche, and clear import markings round out a straightforward, period-correct configuration.
Condition
Overall Condition: Good condition, showing some signs of prior use and handling.
Bore Overall Condition: Excellent - Clean, mirror finish, no signs of wear.
Bore Rifling: Excellent Rifling - Sharp lands and grooves.
Specific Condition Notes: Shows handling marks from prior use. See photos for details.
What's Included
- Rock Island Armory M1911A1 - MS .45 ACP pistol
- 1x 8-round 1911 single-stack steel magazine with numbered witness holes and a small bumper-style baseplate
The M1911A1 - MS is the GI-series mid-size (Commander) variant with a Commander-length 4.25-inch barrel and an 8+1 capacity in .45 ACP. It runs a single-action, short-recoil-operated system true to the 1911 platform.
Construction is robust and traditional: a cast 4140 steel frame mated to a forged 4140 steel slide, both finished in a Parkerized matte dark gray/black. The front strap is smooth, and the arched mainspring housing and M1911A1-style scalloped relief cuts behind the trigger preserve the classic A1 profile.
Controls and sighting elements follow the GI pattern. It features a short, solid trigger and a spur hammer, with both a manual safety and a grip safety. The slide carries rear cocking serrations only, and the fixed GI-style sights use a narrow blade front and a small notch rear.
Details include a standard, non-flared magazine well and checkered wood grips marked with a 'U.S.' cartouche. The barrel hood is stamped 'CAL. 45 ACP', and the pistol bears import/proof markings 'APINTL-PAHRUMP NV' and 'ACP PHILIPPINES', with country of origin listed as the Philippines.