Great Lakes Firearms and Ammunition GL15 Features The Great Lakes GL15 runs a semi-automatic direct impingement system through a 7.5 heavy barrel with a pistol-length gas system a .750 gas block and M4 feed ramps for reliable cycling with a wide range of .223 Wylde and 5.56 ammunition. The 1:8 twist rate stabilizes a broad range of bullet weights giving the shooter flexibility in ammunition selection without sacrificing accuracy. A threaded 1/2x28 muzzle accepts a suppressor or muzzle device adding versatility for shooters who want to manage recoil or sound signature. The billet upper and lower receiver set provides a tight precise fit that contributes to the pistol s overall reliability and consistent function. Finished in a Splatter Black Cerakote pattern over a bi-tone frame the GL15 delivers a rugged textured look while the durable Cerakote coating resists wear and corrosion from regular use. The 7 M-LOK aluminum handguard offers a lightweight modular attachment point for lights grips and other accessories while the Picatinny top rail accepts a red dot or other optic. A 30-round magazine ships with the pistol giving the shooter ample capacity right out of the box. Made in the USA the Great Lakes GL15 offers a compact accessory-ready AR pistol platform built for reliable field and range performance. Great Lakes Firearms and Ammunition GL15 Specifications Manufacturer: Great Lakes Model: GL15 Type: Semi-Auto AR-15 Pistol Caliber: .223 Wylde Barrel Length: 7.5 Twist Rate: 1:8 Capacity: 30 Rounds Handguard: 7 M-LOK Aluminum Finish: Splatter Black Cerakote Frame Material: Alloy Optic Footprint: Picatinny Thread Pattern: 1/2x28 Overall Length: 23.5 Weight: 5 lbs Magazines Included: 1 Available At: GrabAGun