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The .22 TCM cartridge is a product of Armscor's own engineering — a bottlenecked round derived from the .223 case, shortened and necked down to fire a 40-grain bullet at over 2,000 feet per second from a 5-inch barrel. That puts it in a class alongside the FN 5.7x28mm in terms of velocity, but in a platform that 1911 fans already know and love. The muzzle blast is dramatic, the recoil is minimal, and the whole experience tends to turn heads at the range.
The MPN 56879 model is the TCM Armorlube FS, which is Rock Island's "Armor Series" designation for guns finished with their PECVD (Physical Vapor Deposition) coating applied to the barrel, slide, and frame. This coating is harder and more corrosion-resistant than standard parkerizing, while the smaller parts retain a traditional parkerized finish. The frame itself is full-size, double-stack 4140 ordnance steel, hand-fitted for function. You get a 17+1 capacity from a wide-body mag well, which is a meaningful upgrade over single-stack 1911 territory.
The trigger is skeletonized with an adjustable over-travel stop and breaks cleanly in the 3 to 4.5 lb range. The extended beavertail grip safety encourages a proper high grip, which helps with both control and consistency. Up front, the fiber optic front sight is mounted in a dovetail cut, paired with the TRT1 adjustable rear sight so you can actually dial in your zero rather than just living with whatever the factory set. Polymer grip panels round things out with a checkered texture that keeps the gun planted in your hand.
This model is chambered exclusively in .22 TCM, not the combo version that includes a 9mm barrel conversion. Ammunition is produced by Armscor and is available in 50-round boxes, so stocking up before a range session is the move. It ships with two 17-round magazines and a gun lock.
The .22 TCM is a proprietary bottlenecked centerfire cartridge developed by gunsmith Fred Craig and Armscor, based on a shortened .223 case necked down to fire a 40-grain bullet. From a 5-inch barrel, it reaches over 2,000 feet per second, putting it in the same velocity ballpark as the FN 5.7x28mm. Recoil is considerably lighter than 9mm, and muzzle energy is roughly comparable to standard 9mm defensive loads. It is a niche cartridge, but a genuinely fun and capable one.
No, this specific model is chambered in .22 TCM only and does not include a 9mm conversion barrel or recoil spring. If you want the dual-caliber capability, Rock Island Armory offers separate combo models that include both barrels. This version ships with two 17-round .22 TCM magazines and a gun lock.
Armscor is the primary commercial producer of .22 TCM ammunition, so your selection is more limited than mainstream calibers like 9mm or .45 ACP. That said, it is available through most major online ammo retailers and at many brick-and-mortar gun shops. Buying in bulk when you find it in stock is the smart play, especially before a range session. Note that .22 TCM and .22 TCM 9R are slightly different, and this pistol is chambered for the original .22 TCM.
PECVD stands for Physical Vapor Deposition Coating, which is a hard-surface treatment applied to the barrel, slide, and frame on this model. It provides stronger corrosion and wear resistance compared to standard parkerizing, and gives the gun a consistent matte black appearance. The smaller parts on this pistol retain a traditional parkerized finish.
The light recoil of the .22 TCM makes it more approachable than most full-size steel 1911s, and the added weight of the steel frame helps absorb what little recoil there is. The single-action trigger requires manual thumb safety management, so a solid understanding of 1911 operation is helpful. Overall, it is a very manageable gun to shoot, though the 1911 platform has a slight learning curve compared to striker-fired pistols.
The .22 TCM's flat-shooting, high-velocity nature combined with the 5-inch barrel and adjustable TRT1 rear sight makes for a very capable target pistol. Published range tests have produced five-shot groups in the 1.4 to 1.8-inch range at 25 yards, which is solid performance for a production pistol. The skeletonized trigger with an adjustable over-travel stop helps keep things consistent once you have the sight dialed in.
| UPC | 4806015568797 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | 56879 |
| Action | |
| ATF Type | Pistol |
| Barrel Length | 5" |
| Caliber/Gauge | .22 TCM |
| Capacity | 17 + 1 |
| Color | Black |
| Length | 10.5 |
| Number of Magazines | 1 17 rd. |
| Package Height | 2.8 |
| Package Width | 11.8 |
| Product Type | Semi-Auto Pistol |
| Shipping Weight | 6.5 |
| Sights | RS: TRT1 FS: Fixed Fiber Optic |
| Sights Type | Adjustable Sights |
| State Restriction (IL) | NO SALE TO ILLINOIS PICA |
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