Shop for Rock Ultra FS – 9mm online at GunBroker.com
The Rock Island Armory Rock Ultra FS – 9mm 8+1 capacity is part of RIA’s Rock lineup of Series 70 M1911 semi-automatics. 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 1:15.7” twist ratio.
You might already have guessed FS stands for Full Size, and if so, you’d be right! Overall height is 5.5", overall width is 1.3" and overall length is 8.75". Unloaded weight is 2.5 pounds; this climbs to 2.87 pounds when the gun is loaded.
This full-size 9mm semi-auto looks great and feels great. It’s a dynamo of classic features. Note the visual perfection of the barrel vault over the slide and the tightly packed rear slide serrations in back.
The frame, slide and other exposed parts are strong and hard high-grade SAE 4140 chromium-molybdenum alloy steel. The frame wears a black oxide finish while the slide is Parkerized, meaning it’s anodized for wear and corrosion resistance.
The front sight is a high-contrast red tube fiber optic. You can’t miss it, and it’s there to help ensure you can’t miss with it either. In back is an LPA MPS1 type adjustable rear sight that’s rear cantilevered for an extended sight radius compared to older M1911-type standard sights. All else being equal, a longer sight radius leads to higher accuracy. The rear sight is also ramped for snag-avoidance.
The grips feel good. They are wonderfully wavy and nicely textured white to black grayscale G10 polymer tactical grips. G10 always scores high marks for its light weight and durability.
Otherwise, the gun shares many features with the rest of its Rock 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 a division of Armscor, founded in 1905 in the Philippines as Squires Bingham & Company. The name changed to Armscor in the 1980s.
That same decade, Armscor established US operations 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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