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The Rock Island Armory Rock Ultra FS – 40 S&W 10+1 capacity .40 S&W is part of RIA’s Rock lineup of Series 70 M1911 semi-automatics. The FS means Full Size, so no surprise, overall height is 5.5", overall width is 1.3" and overall length is 8". Unloaded weight is 2.5 pounds empty, which climbs to 2.87 pounds when the gun is loaded.

This semi is a single-stack, single-action, recoil-operated semi-automatic wrapped around a 5" length, button rifled barrel whose 6-grooves spiral inside the bore at an extended 1:16” twist ratio.

This pistol cohesively integrates many great details such as its tightly packed rear slide serrations you’ll see on many of the other frames in the Rock 1911s. The gun’s timelessly designed frame, slide and other exposed parts are strong and hard high-grade SAE 4140 chromium-molybdenum alloy steel. Both slide and frame carry a Parkerized finish that protect for wear and corrosion resistance.

The front sight is a red tube fiber optic. Its high contrast helps you acquire targets rapidly. In back is an LPA MPS1 type adjustable rear sight. It is cantilevered and ramped, giving you improved usability and a better sight radius, which leads to higher accuracy.

When you grab this semi, you’ll wrap your hand comfortably around nicely textured grayscale G10 polymer tactical grips. G10 is noted for its light weight and durability and the white to black color palette is very attractive and almost mesmerizing!

Otherwise, the gun shares many features with the rest of its Rock Series siblings. This means it gets a nicely upturned beavertail, skeletonized loop hammer, adjustable overtravel stop skeletonized trigger and fixed Parkerized dovetailed sights that are angled for snag-free unholstering.

The trigger is triple ported with stacked trapezoids and has an adjustable overtravel stop. Trigger pull is factory set to 4 to 6 pounds.

Rock Island Armory is part of Armscor, a contraction of Arms Corporation of the Philippines. In the 1980s, Armscor debuted operations in the United States and acquired Rock Island Armory, famous for making M1911 semi-automatic pistols, etc. It set up its American headquarters at Pahrump, Nevada and later started making ammunition in Stevensville, Montana. Now Armscor is the world’s largest M1911 producer.

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