The Rock Island Armory AL3.1 is a premium 10mm Auto 1911 with enhanced slide serrations, fiber-optic sights, and an extended beavertail on a full-size 5-inch frame. Part of the RIA premium tier, competing with Colt Delta Elite in the 10mm 1911 segment. Type: Semi-Auto Pistol Action: Single-Action Caliber: 10mm Auto Capacity: 8 Year introduced: 2019, Philippines Weight: 40.5 oz Overall length: 8.7" Status: Active Intended use: Hunting, Target