Used Rock Island Armory RIA M1911 A1-FS 45 ACP 1911 Series 70 5" M1911A1

RIA M1911 A1-FS 45ACP M1911A1 1911

How Buying WorksEnding October 13, 2026 at 10:30 PM

Key Features

  • Item Type: Semi Auto Pistols
  • Action: SAO
  • Manufacturer: Rock Island Armory (RIA)
  • Capacity: 8 1
  • Model: M1911 A1-FS
  • Barrel Length: 5"
  • Caliber: .45 ACP
  • Finish: Parkerized
  • Overall Condition: Very Good

Product Description

    Rock Island Armory M1911 A1-FS .45 ACP, Full-Size Series 70, 5-inch, Parkerized, Stag-Style Grips

    This Rock Island Armory M1911 A1-FS is a full-size, Series-70 pattern .45 ACP with a Government-length 5-inch barrel and a matte dark parkerized-type finish. It features a forged 4140 steel slide, a cast 4140 carbon-steel frame, and aftermarket stag-style textured grip panels. Fixed, low-profile sights, an arched mainspring housing, and traditional 1911 controls round out a classic configuration with durable construction.

    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: There are light handling marks from previous use. The bore is bright and clean. Please refer to the photos for additional details.

    What's Included
    • Rock Island Armory M1911 A1-FS pistol with stag-style textured grip panels (installed)
    • 1x 8-round steel single-stack magazine marked 'MADE IN USA' with numbered witness holes

    This M1911 A1-FS follows the proven Government pattern with a 5-inch barrel, barrel bushing, and a checkered recoil-spring plug. The Series-70 configuration omits a firing-pin block, maintaining a traditional 1911 operating layout.

    Construction is robust, with a forged 4140 steel slide and a cast 4140 carbon-steel frame wearing a uniform matte dark, parkerized-type finish. Rear vertical slide serrations provide a firm grip for racking.

    Sights are fixed and low-profile, combining a staked blade front with a dovetailed square-notch rear. Controls include a left-side magazine release, a left-side thumb safety, and a grip safety, paired with a solid (non-skeletonized) trigger and a spur hammer.

    The pistol retains classic 1911 ergonomics, featuring an arched mainspring housing with vertical grooves and single-stack .45 ACP feeding for an 8+1 capacity. Aftermarket stag-style textured grip panels are installed for a distinct look and positive purchase.

    Markings include APINTL–PAHRUMP NV and ACP PHILIPPINES. The pistol is single-action, short-recoil operated, and built on the 1911 platform for familiar handling and maintenance.

Specifications

Item TypeSemi Auto Pistols
ManufacturerRock Island Armory (RIA)
ModelM1911 A1-FS
Caliber.45 ACP
Overall ConditionVery Good
Bore ConditionExcellent
ActionSAO
Capacity8 1
Barrel Length5"
FinishParkerized
Stock/GripsStag-style textured grip panels
Sight/OpticFixed, low-profile
Country of OriginPhilippines