The Rock Island Armory M1911 A1 Tac Ultra FS is a full-size, single-stack 1911 from RIA USA with a Novak-pattern front sight and LPA rear sight. This model is chambered in .45 ACP with a 5.05″ barrel and an 8-round capacity. Manufacturer part number: 57166.
Key features
- .45 ACP, 5.05″ barrel
- Capacity: 8 rounds
- Front Sight: Novak
- Rear Sight: LPA
- Trigger Pull: 4-6 lb
- Overall Length: 8.74 inch
- Weight: 2.5 lb
Buying from PM Customs in Yukon
PM Customs is a licensed FFL in Yukon, OK, serving the Oklahoma City metro. Choose local pickup by appointment (generally Mon–Sat, 8 AM–4 PM), or have your Rock Island Armory M1911 A1 Tac Ultra FS pistol shipped to your local FFL. You pick at checkout. Questions? Call 405-265-8955.







