Great Lakes Firearms GL10 AR-10 .300 Win Mag Rifle

Great Lakes Firearms GL10 AR-10 in .300 Win Mag

The GL10 represents a serious commitment to precision rifle engineering. This AR-10 platform rifle is purpose-built for shooters who demand accuracy and reliability in a modern sporting rifle.

Barrel and Accuracy

The heart of any rifle is its barrel, and Great Lakes Firearms has invested heavily here. The 24-inch barrel is crafted from premium 416R stainless steel with 5R rifling and a 1:10 twist rate optimized for .300 Winchester Magnum ballistics. The barrel undergoes double thermal stress-relief and air-gauging to ensure consistent performance shot after shot. A heavy profile barrel provides the rigidity necessary for precision work while managing recoil effectively.

Receiver and Controls

The lower receiver is machined from 7075-T6 aluminum billet, while the upper is similarly precision-machined for perfect fit and function. The rifle features a mil-spec trigger with a 5.5 to 6-pound pull—crisp and predictable. Standard mil-spec grip and charging handle provide familiar controls for AR platform shooters.

Ergonomics and Modularity

The 20-inch M-LOK handguard offers modern accessory mounting flexibility without unnecessary bulk. A full-length Picatinny rail provides additional mounting options for optics and tactical accessories. The fixed Hogue OverMolded stock delivers comfort and stability, while the rifle-length gas system ensures reliable cycling with .300 Win Mag's substantial power.

Specifications

• Caliber: .300 Winchester Magnum
• Barrel: 24" stainless steel, 5R rifling, 1:10 twist
• Muzzle Device: 5/8x24 stainless steel muzzle brake (included)
• Magazine: 5-round custom aluminum magazine
• Overall Length: 45.5 inches
• Weight: 9.25 pounds
• Gas System: Rifle-length

The GL10 delivers the accuracy and power serious hunters and long-range shooters demand.