The Rock Island Armory Rock Ultra FS 1911-A1 Tactical II is a full-size 1911 platform built on Rock Island’s 70-series design using 4140 ordnance steel and precision CNC machining with hand fitting. This model is chambered in .40 S&W and features a 5-inch button-rifled barrel with a full-length guide rod and a parkerized matte finish. Ergonomic G10 tactical grips, a skeletonized hammer and trigger, and an extended beavertail frame safety are included for improved control and handling.
Key Specifications
- The caliber is .40 S&W.
- The barrel measures 5 inches and is button rifled.
- The action type is Semi-Auto.
- The frame material is steel.
- The finish is black parkerized.
- The grips are G10 tactical grips.
- The firearm weight is approximately 40 ounces.
- The sighting system includes an LPA MPS1-type adjustable rear sight and a high-visibility fiber-optic front sight.
- The slide is described as serrated for improved manipulation.
- An ambidextrous safety and extended beavertail grip safety are fitted for added control.
The Rock Ultra FS is designed for shooters who want a traditional 1911 experience with upgraded components for reliable service and practical performance. Its combination of a full-length guide rod, adjustable rear sighting, and durable parkerized finish makes it well suited for range work and duty-style carry in jurisdictions where a full-size 1911 is appropriate. The G10 grips and skeletonized controls provide a tactile, modern feel while maintaining the classic 1911 footprint.
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