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Rock Island Armory Rock Ultra CS-L Combo Lightweight Dual-Caliber 1911 9mm/.22 TCM 9R Pistol

The Rock Island Armory Rock Ultra CS-L Combo is a compact, lightweight 1911-style pistol chambered for both 9mm and .22 TCM 9R. Its aluminum frame reduces carry weight while the 3.6-inch barrel preserves a practical balance of maneuverability and performance. The pistol uses a single-stack 8+1 magazine and combines a manual thumb safety with the traditional 1911 grip safety. A fiber optic front sight and adjustable LPA MPS1-type rear sight support rapid sight alignment and target-focused shooting. The skeletonized hammer and trigger include an adjustable overtravel stop, while textured G10 grips improve control. The pistol has a black hardcoat-anodized aluminum frame and black Parkerized steel components, and the included .22 TCM 9R accessory barrel expands its versatility beyond the primary 9mm configuration.

Key features

  • Compact aluminum-frame 1911 design weighs approximately 1.9 pounds for easier carry and handling
  • Includes 9mm and .22 TCM 9R barrels to provide flexible ammunition options
  • Single-stack 8+1 capacity supports a slim, concealable profile
  • Fiber optic front sight and adjustable LPA MPS1-type rear sight provide fast target acquisition and sight adjustment
  • Skeletonized hammer and trigger with adjustable overtravel stop support a crisp 4- to 6-pound trigger pull
  • G10 grips provide a secure, durable purchase during recoil and extended range sessions

The Rock Ultra CS-L Combo offers a compact 1911 platform with two interchangeable caliber options for concealed carry, practice, and recreational shooting.

Rock Island Armory Rock Ultra CS-L Combo Lightweight: quick facts

What caliber is the Rock Island Armory Rock Ultra CS-L Combo Lightweight?
It is chambered in 9mm, .22 TCM 9R.
How many rounds does it hold?
8+1 rounds; magazines included: 1.
How big and heavy is it?
Barrel length 3.6 inches, overall length 7.25 inches, weight 1.9 pounds.
What kind of action does it use?
Semi-Automatic.
Is it optic ready or threaded?
Optic ready: No; threaded barrel: No.
What sights and finish does it have?
Sights: Fiber Optic Sights; finish: Black Hardcoat Anodized and Black Parkerized.
Is it new or used?
New, in the original packaging.
Can I buy it in Iowa?
Yes. It ships to a licensed FFL dealer in Iowa; you pick it up there after the background check. Handguns ship to the Iowa dealer you pick at checkout, where you complete Form 4473 and the background check before pickup.
Is it in stock?
Yes, at $689.99. Orders leave within 1-2 business days; shipping is free over $999.

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