Great Lakes Firearms120920995
Great Lakes Firearms AR-10 .243 Win 24" Pursuit Green Camo/SS 5-Round Rifle$1,040.63
Availability: In Stock
Current Stock: Out of stock
The Great Lakes Firearms AR-10 .300 Win Mag is a hard-hitting rifle built for hunters and shooters who demand power and precision at distance. Chambered in .300 Winchester Magnum and wearing a pursuit green camo finish paired with stainless steel components, this AR-10 platform rifle delivers the stopping power and range capability serious hunters need for elk, moose, and other big game. At 24 inches of barrel length and 10.2 pounds overall, it strikes a practical balance between firepower and field-ready handling.
Built on a solid foundation of billet aluminum upper and lower receivers, this rifle pairs precision engineering with trusted AR-10 architecture. The 24-inch stainless steel 416R barrel features a 5R rifling profile and 1:10 twist that's optimized for .300 Win Mag ballistics and inherent accuracy. A rifle-length gas system feeds a custom-designed bolt carrier group, keeping reliability and function consistent shot after shot. The full-length M-Lok aluminum handguard (20 inches) provides plenty of real estate for optics, lights, or other accessories you'll want to run on a long-range hunting setup.
Ergonomics reflect practical field use: a standard grip, Hogue fixed stock for rock-solid repeatability, and a custom charging handle keep the rifle balanced and intuitive to run. The 5/8x24 muzzle brake (stainless steel, 416R) tames recoil and helps you stay on target during follow-up shots. You'll get a custom GLFA five-round magazine built for reliability in the field.
If you're building a .300 Win Mag AR-10 hunting rifle or stepping up to a modern big-game platform with proven AR ergonomics, the Great Lakes Firearms AR-10 starts with quality components and a time-tested caliber. Upper and lower are compatible with standard AR-10 parts kits and triggers, so you can customize as your shooting evolves.
| Caliber | .300 Winchester Magnum |
| Barrel Length | 24 inches |
| Barrel Material | Stainless Steel 416R |
| Rifling | 5R rifling, 1:10 twist |
| Overall Length | 45.5 inches |
| Weight | 10.2 lbs |
| Muzzle Device | 5/8x24 Stainless Steel Muzzle Brake |
| Handguard | 20-inch Aluminum M-Lok with Picatinny Rail |
| Upper Receiver | Aluminum Billet |
| Lower Receiver | Aluminum Billet 7075 |
| Gas System | Rifle-Length |
| Gas Block | .750 4150 Steel, Black Oxide Coated |
| Stock | Hogue Fixed Rifle Stock (Black) |
| Grip | Standard |
| Charging Handle | Custom Design |
| BCG | Custom Design |
| Magazine Included | GLFA Custom Aluminum 5-Round |
| Finish | Pursuit Green Camo with Stainless Steel |
| Platform | AR-10 |
Yes. The upper and lower receivers are AR-10 compatible and accept standard AR-10 parts kits, triggers, and safeties. The M-Lok handguard and Picatinny rail are also compatible with common optics mounts and tactical accessories.
The 5R rifling profile reduces bullet deformation and improves accuracy, while the 1:10 twist rate is optimized for the bullet weights and velocities typical of .300 Winchester Magnum hunting loads. This combination supports both precision and long-range hunting applications.
The 5/8x24 stainless steel muzzle brake helps manage recoil and helps you stay on target during follow-up shots—an important feature in a .300 Win Mag rifle. Since it uses the standard 5/8x24 mounting interface, it can be swapped for a suppressor or other muzzle device if needed.
The rifle weighs 10.2 lbs and comes with a GLFA custom aluminum five-round magazine.
SKU: 120918553 • Weight: 12.63oz
Availability: In Stock
Current Stock: Out of stock
The Great Lakes Firearms AR-10 .300 Win Mag is a hard-hitting rifle built for hunters and shooters who demand power and precision at distance. Chambered in .300 Winchester Magnum and wearing a pursuit green camo finish paired with stainless steel components, this AR-10 platform rifle delivers the stopping power and range capability serious hunters need for elk, moose, and other big game. At 24 inches of barrel length and 10.2 pounds overall, it strikes a practical balance between firepower and field-ready handling.
Built on a solid foundation of billet aluminum upper and lower receivers, this rifle pairs precision engineering with trusted AR-10 architecture. The 24-inch stainless steel 416R barrel features a 5R rifling profile and 1:10 twist that's optimized for .300 Win Mag ballistics and inherent accuracy. A rifle-length gas system feeds a custom-designed bolt carrier group, keeping reliability and function consistent shot after shot. The full-length M-Lok aluminum handguard (20 inches) provides plenty of real estate for optics, lights, or other accessories you'll want to run on a long-range hunting setup.
Ergonomics reflect practical field use: a standard grip, Hogue fixed stock for rock-solid repeatability, and a custom charging handle keep the rifle balanced and intuitive to run. The 5/8x24 muzzle brake (stainless steel, 416R) tames recoil and helps you stay on target during follow-up shots. You'll get a custom GLFA five-round magazine built for reliability in the field.
If you're building a .300 Win Mag AR-10 hunting rifle or stepping up to a modern big-game platform with proven AR ergonomics, the Great Lakes Firearms AR-10 starts with quality components and a time-tested caliber. Upper and lower are compatible with standard AR-10 parts kits and triggers, so you can customize as your shooting evolves.
| Caliber | .300 Winchester Magnum |
| Barrel Length | 24 inches |
| Barrel Material | Stainless Steel 416R |
| Rifling | 5R rifling, 1:10 twist |
| Overall Length | 45.5 inches |
| Weight | 10.2 lbs |
| Muzzle Device | 5/8x24 Stainless Steel Muzzle Brake |
| Handguard | 20-inch Aluminum M-Lok with Picatinny Rail |
| Upper Receiver | Aluminum Billet |
| Lower Receiver | Aluminum Billet 7075 |
| Gas System | Rifle-Length |
| Gas Block | .750 4150 Steel, Black Oxide Coated |
| Stock | Hogue Fixed Rifle Stock (Black) |
| Grip | Standard |
| Charging Handle | Custom Design |
| BCG | Custom Design |
| Magazine Included | GLFA Custom Aluminum 5-Round |
| Finish | Pursuit Green Camo with Stainless Steel |
| Platform | AR-10 |
Yes. The upper and lower receivers are AR-10 compatible and accept standard AR-10 parts kits, triggers, and safeties. The M-Lok handguard and Picatinny rail are also compatible with common optics mounts and tactical accessories.
The 5R rifling profile reduces bullet deformation and improves accuracy, while the 1:10 twist rate is optimized for the bullet weights and velocities typical of .300 Winchester Magnum hunting loads. This combination supports both precision and long-range hunting applications.
The 5/8x24 stainless steel muzzle brake helps manage recoil and helps you stay on target during follow-up shots—an important feature in a .300 Win Mag rifle. Since it uses the standard 5/8x24 mounting interface, it can be swapped for a suppressor or other muzzle device if needed.
The rifle weighs 10.2 lbs and comes with a GLFA custom aluminum five-round magazine.
SKU: 120918553 • Weight: 12.63oz