What’s in the Box: Great Lakes Firearms GL10 Rifle; (1) 5-Round Magazine; Owner’s Manual. The Great Lakes Firearms GL10 is a precision-oriented AR-style rifle chambered in 7mm Remington Magnum, designed for shooters who demand long-range accuracy and modern tactical features. Built on a direct impingement operating system, the GL10 features a 24" stainless steel barrel with a 1:8 twist, a muzzle brake with 5/8x24 threading, M-LOK free-float handguard, Picatinny top rail for optics mounting, and a Hogue OverMolded stock. Comes with one 5-round magazine and owner’s manual. Sights: None. Grips/Stock: Mil-Spec Grip / Hogue OverMolded Stock. Finish: Stainless Barrel / Black Cerakote Receiver. Overall length: 44". Weight: 9.30 lbs. Magazine Capacity: 5+1.