The Rock Island Armory RIA M1911-A1 45ACP 4.3" Standard MS delivers classic 1911 ergonomics in a mid-size package built for dependable performance. Its 4.30" button-rifled barrel, black parkerized steel frame with beavertail, and serrated slide are paired with textured black/gray G10 grips for secure handling and a confident, consistent shooting experience. A skeletonized trigger and hammer, fixed dovetail sights, and ambidextrous safety round out a straightforward, practical design focused on reliability.

This M1911-A1 mid-size model offers an 8+1 capacity in .45 ACP, making it suitable for home protection, concealed carry where allowed, and regular range practice. The smooth, snag-resistant profile supports quick presentation from a holster, while the grip safety and manual thumb safety provide familiar 1911-style control. Whether you are refining fundamentals or adding a solid .45 ACP to your collection, this pistol reflects Rock Island Armory’s reputation for value-driven craftsmanship and proven 1911 performance.

• Manufacturer: Rock Island Armory
• Model: M1911-A1 Standard MS 51531
• Caliber: 45 ACP
• Action: Single Action Only
• Barrel Length: 4.30"
• Number of Magazines: 1
• Capacity: 8+1
• External Safety: Ambidextrous Thumb And Grip Safety
• Weight: 2.31 lbs
• Length: 8"
• Width: 1.31"