The Armscor / Rock Island Armory Rock Ultra FS is a full-size 1911-style semi-automatic pistol chambered in 9mm with a 5″ button-rifled barrel and a black parkerized finish. It pairs a full-length guide rod and skeletonized hammer and trigger with an extended beavertail frame and G10 tactical grips. The sighting package combines a high-visibility fiber-optic front with an LPA-style adjustable rear for real-world sighting flexibility.
Key Specifications
- The caliber is 9mm Luger.
- The barrel measures 5 inches and is button-rifled.
- The action is Semi-Auto.
- The finish is Black Parkerized.
- The frame material is Steel.
- The grips are G10 tactical grips.
- The sighting system is a fiber-optic front and adjustable LPA-style rear.
- The pistol includes an ambidextrous thumb safety.
- The package includes 1 magazine.
- The magazine capacity is listed inconsistently across sources; see notes.
Built on Rock Island’s Series 70-style platform and assembled with 4140 ordnance steel components, the Rock Ultra FS delivers classic 1911 ergonomics with contemporary upgrades like skeletonized controls, an adjustable over-travel stop, and a full-length guide rod. The combination of a parkerized finish and G10 grips provides a durable, tactile package suitable for range use, practical shooting, and maintenance-focused owners who value robust materials and straightforward controls.
Product information is supplied by the manufacturer and/or distributor and may be automatically formatted or enhanced using AI for clarity and consistency. While we strive for accuracy, specifications, features, and included items may change without notice. Always verify details using the manufacturer’s official documentation and the information shown on this product page before purchase or use.
