Rock Island 51487 Rock Ultra MS 45 ACP 4.25" 8+1 Capacity

The Rock Island 51487 Rock Ultra MS delivers match-grade accuracy in a compact 1911 platform designed for serious shooters. This 45 ACP pistol combines traditional craftsmanship with modern enhancements to provide reliable performance across multiple shooting disciplines.

What Makes This Different

The Rock Ultra MS features a precision-machined 4.25-inch barrel that bridges the gap between full-size accuracy and compact carry convenience. The black Parkerized finish provides superior corrosion resistance compared to standard bluing, while the beavertail grip safety eliminates slide bite during rapid fire sequences. G10 grips offer enhanced texture and moisture resistance that polymer alternatives cannot match.

Key Features

• Match-grade 4.25-inch barrel with target crown for enhanced accuracy
• 8+1 capacity with flush-fitting magazine design
• Black Parkerized steel construction resists wear and corrosion
• Beavertail grip safety prevents hammer bite during shooting
• Serrated slide provides secure manipulation in adverse conditions
• Black and gray G10 grips deliver superior traction and durability
• Standard 1911 holster compatibility across major manufacturers

The 4.25-inch barrel length delivers ballistic performance nearly identical to full-size models while reducing overall length for concealed carry applications. Competition shooters appreciate the crisp trigger break and consistent lockup, while the Parkerized finish maintains appearance through extended range sessions. The G10 grip panels maintain their texture through temperature extremes and moisture exposure.

Technical Specs

• Caliber: 45 ACP
• Barrel Length: 4.25 inches
• Capacity: 8+1 rounds
• Frame Material: Steel with beavertail grip safety
• Slide: Serrated steel with black Parkerized finish
• Grips: Black and gray G10 composite
• Overall Length: Approximately 7.75 inches
• Weight: Approximately 38 ounces unloaded
• Manufacturer: Rock Island Armory

The Rock Island 51487 Rock Ultra MS represents proven 1911 engineering enhanced with modern materials and finishes. Shooters seeking reliable 45 ACP performance in a compact package will find this pistol delivers consistent results without the premium price of custom builders.