Description
The Rock Island TAC Ultra MS HC Combo is one of those guns that's genuinely hard to categorize, because it does so much. At its core, it's a Commander-length, double-stack 1911 chambered in 9mm with a 17+1 capacity, but it also ships with a drop-in 22TCM9R barrel that transforms the platform into something else entirely. Swap the barrel and recoil spring, and you're running Armscor's bottlenecked .22 caliber cartridge at velocities over 1,850 fps. The 22TCM9R is derived from a necked-down 9mm case, which means it feeds from the same double-stack magazine without any modification. It's a legitimately fun round to shoot, with noticeably light recoil and a flat trajectory, and it makes this pistol unlike anything else in its class.
The frame and slide are machined from 4140 ordnance steel and finished in a matte black Parkerized coating that holds up well to handling and weather. Rock Island hand-fits each pistol to tight tolerances, which is part of why their 1911s tend to feel more dialed-in than you might expect at this price. The controls are all business: ambidextrous thumb safety, beavertail grip safety, skeletonized hammer and trigger with an adjustable overtravel stop, and a checkered slide release that's easy to work with either thumb. The full-length Picatinny rail on the dust cover gives you room to mount a light or laser, and the full-length guide rod keeps everything running consistently cycle to cycle.
Sights are a fiber optic up front paired with an adjustable two-dot LPA rear, which is a legitimate upgrade over what you find on most pistols in this segment. The G10 grip panels are textured aggressively enough to stay put in your hand without being uncomfortable during a long range session. At 2.5 pounds unloaded and 8 inches overall, it's a solid, well-balanced gun that sits comfortably in the hand despite the wide double-stack frame.
Whether you're a 1911 enthusiast who wants more capacity, someone curious about the 22TCM9R cartridge, or just looking for a capable, feature-rich pistol that gives you options, this combo package delivers real value and a genuinely unique shooting experience.
Key Specifications
- Manufacturer: Armscor / Rock Island Armory
- MPN: 56632
- UPC: 4806015566328
- Caliber: 9mm / 22TCM9R
- Action: Single Action (SAO)
- Capacity: 17+1
- Barrel Length: 4.20 in
- Overall Length: 8 in
- Height: 5.5 in
- Weight (Unloaded): 2.5 lbs
- Frame Material: 4140 Ordnance Steel
- Finish: Black Parkerized
- Grips: Black G10
- Sights: Fiber Optic Front / Adjustable 2-Dot LPA Rear
- Rail: Full-Length Picatinny Rail
- Safety: Ambidextrous Thumb Safety, Beavertail Grip Safety
What’s Included
- Rock Island TAC Ultra MS HC Combo pistol (9mm)
- 22TCM9R drop-in conversion barrel
- 17-round double-stack magazine
- Sight adjustment tool
- Allen wrenches
Frequently Asked Questions
What does the 22TCM9R conversion involve? Do I need any special tools?
Swapping to the 22TCM9R barrel is a straightforward drop-in process. You remove the slide, swap out the barrel and recoil spring for the 22TCM9R setup, and reassemble. No gunsmithing or specialized tools are required beyond what's included in the box. The same 17-round double-stack magazine works with both calibers, so there's nothing else to swap out.
How does the 22TCM9R cartridge compare to 9mm in terms of recoil and performance?
The 22TCM9R is a bottlenecked round that pushes a lighter .22 caliber projectile at velocities over 1,850 fps from the 4.2-inch barrel, which is significantly faster than 9mm. Despite that speed, recoil is notably lighter than 9mm because the bullet itself is so much lighter. The tradeoff is that 22TCM9R ammo is made almost exclusively by Armscor and is less widely available than 9mm.
Is the TAC Ultra MS HC Combo a good choice for home defense or carry?
The 17+1 capacity and 9mm chambering make it a capable option for home defense, and the Commander-length barrel keeps the overall package manageable. For concealed carry, the double-stack frame is on the wider side compared to single-stack 1911s, so it's best suited for those already comfortable carrying a larger pistol. The fiber optic front sight and adjustable rear are easy to pick up quickly in defensive situations.
Does the Rock Island TAC Ultra MS HC Combo have an ambidextrous safety?
Yes, it does. The oversized ambidextrous thumb safety is easy to operate with either hand, which is a genuine plus for both left-handed shooters and anyone who runs a two-handed grip regularly. It also includes a beavertail grip safety as part of the standard 1911-style control setup.
What kind of warranty does Rock Island Armory offer on this pistol?
Rock Island Armory backs this pistol with a Limited Lifetime Warranty covering the firearm and its parts for their intended purpose. Armscor is the parent manufacturer and has been producing 1911-platform pistols for decades, so parts and service support are well established.
Can I use standard 9mm 1911 magazines with the TAC Ultra MS HC Combo?
When running the 9mm barrel, the pistol uses the included double-stack proprietary magazine that is compatible with the wide-body frame. The 22TCM9R cartridge feeds from that same magazine without modification, since the 22TCM9R was specifically designed to match standard 9mm case length for reliable feeding. It is worth picking up a couple of extra factory magazines since the double-stack TCM-compatible mag is a specific design.





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