Rock Island Rock Ultra CCO .45 ACP, BNIB

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Rock Island Rock Ultra CCO .45 ACP

The CCO combines an Officer-grip Aluminum frame with a Commander-length slide. The shorter, compact Officer-sized grip aids concealed carry and minimizes the chance of printing under a cover garment. This pistol is chambered in 45ACP with a 4.25” button rifled barrel supported by a full length guide rod. Includes a dovetail fiber optic front sight and LPA MPS1 type adjustable rear sight. Also includes skeletonized hammer and trigger. The Rock Ultra CCO is finished with a tough Parkerized/Anodized coating and adds a battle ready G10 tactical grips. True to all Rock Island 1911s, the Rock Ultra comes with a crisp factory 4- to 6- pound trigger to give you a great experience right out of the box.

Model #51857

** Does not include ambi safety as others in ROCK Series.



45 ACP


7 Rounds


Overall Length
8 inch / 203 mm
Overall Width
1.30 inch / 33 mm
Overall Height
5.11 inch / 130 mm

Grips & Finish

Frame Finish
Black Oxide
Slide Finish



4.25 inch / 108 mm

Other Features

Trigger Pull
1.36 - 1.81 kgs
Length of Twist
1 in 400 mm
Rock Island Rock Ultra CCO .45 ACP