Rock Island Armory 56879 | .22 TCM 5″ 17+1 M1911

The Rock Island Armory M1911 A2 FS TCM (part number 56879) is a full-size semi-automatic pistol chambered in .22 TCM with a 5-inch barrel and a 17-round magazine capacity. The gun combines a steel frame with polymer grip panels and is finished with an Armor Lube / PECVD-style coating as noted in the manufacturer materials. For a reliable red-dot option under $1,000 that pairs well with this platform, consider a compact micro red dot such as the Holosun 507K for fast target acquisition and a slim footprint.

Typical applications include hunting with high-velocity .22 TCM loads and competitive/local match shooting where a high-capacity 1911-style platform is desired.

Product Specifications

• The UPC is 4806015568797.
• The manufacturer is Armscor/Rock Island Armory.
• The part number/model is 56879.
• The caliber is listed as .22 TCM.
• The action is Semi-Auto.
• The barrel length is 5 inches.
• The magazine capacity is 17 rounds.
• The frame material is Steel.
• The grip material is Polymer.
• The sights are listed as fiber optic front and TRT1 adjustable rear.
• The finish is noted as Armor Lube / PECVD coating in supplier materials.
• The product is described with a skeletonized hammer and extended beavertail.
• The trigger is described as a skeletonized GI-style trigger with adjustable overtravel stop.
• The package type is listed as Plastic case.
• The listed number of magazines included is 1 in the structured data.

This M1911-style TCM pistol blends a full-size, double-stack magazine well with traditional 1911 ergonomics and modern finishing. The 5-inch barrel and reported high-velocity performance of the .22 TCM cartridge make it suited to shooters who want a flat-shooting handgun for field use or competitive stages. The pistol’s adjustable rear sight and fiber-optic front sight provide a practical sighting solution out of the box.

Built on a steel frame with polymer grips and a skeletonized hammer and trigger, this RIA TCM variant aims to modernize the 1911 platform while retaining familiar controls. The combination of a double-stack 17-round magazine and a 5-inch barrel creates an option for those seeking sustained capacity and ballistic performance from a compact full-size 1911 layout.

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