The Rock Island Armory 1911 Rock Ultra FS 9mm is a full-size 1911 in the traditional 70-series pattern, chambered in 9mm with a 5-inch button-rifled barrel (Rock Island Armory part no. 51623). Rock Island Armory pairs a low-profile adjustable rear sight with a high-visibility fiber optic front, so the sight picture is quick to pick up on the range. A skeletonized hammer and trigger with an adjustable overtravel stop, an ambidextrous safety and G10 grips round out a pistol that suits steel matches, range days and home defense. The slide and frame are parkerized black, and the factory trigger breaks at a 4- to 6-pound pull.

Key Specifications

• The chambering is 9mm, a low-recoil round that suits both newer 1911 shooters and competitors.
• Magazine capacity is 10 rounds, a single-stack count that keeps the grip slim.
• The barrel is 5 inches with button rifling and a full-length guide rod, giving a full-size sight radius.
• The front sight is a dovetail-mounted fiber optic, a bright post that is easy to pick up against any background.
• The rear sight is an LPA MPS1-type adjustable unit, so windage and elevation can be dialed in for your load.
• Grips are G10 in black and gray, a textured material that holds firm in wet or sweaty hands.
• The finish is black parkerized, a matte coating that cuts glare and resists wear.
• Trigger pull is 4 to 6 pounds from the factory, paired with a skeletonized hammer and trigger and an adjustable overtravel stop.
• The pistol has an ambidextrous safety, so left- and right-handed shooters can both work it naturally.
• Weight is 2.5 pounds, a useful number when comparing it with other full-size 1911s.

Frequently Asked Questions

Is this Rock Ultra a 9mm or a .45 ACP? It is a 9mm. The Rock Ultra FS in this listing is chambered in 9mm and feeds from a 10-round magazine, while the same Rock Ultra FS line is also sold in other calibers.

What sights does the Rock Ultra FS 9mm have? It has a dovetail-mounted fiber optic front sight and an LPA MPS1-type adjustable rear sight, so the pistol is ready for sight adjustment without a gunsmith.

What does FS stand for in the name? FS marks the full-size configuration with a 5-inch barrel, as opposed to the mid-size (MS) and compact (CS) versions in the Rock Island 1911 line.

Buy the Rock Island Armory 1911 Rock Ultra FS 9mm Pistol, 5-Inch Barrel, G10 Grips, 10-Round

Rock Island builds the Rock Ultra FS for shooters who want a competition-ready 1911 with adjustable sights and a tuned trigger already on the gun. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL, and browse more semi-auto handguns while you are here.