The Great Lakes Firearms AR-10 in .270 Winchester brings serious long-range capability to the modern rifle platform. This .270 AR10 combines the ergonomics and modularity you expect from an AR-platform rifle with a cartridge built for distance and power, making it a compelling choice for hunters and shooters who want flat-shooting performance without stepping away from a familiar manual-of-arms.
Built on a billet aluminum lower and upper receiver, this rifle centers around a 24-inch stainless steel barrel with 5R rifling and a 1:10 twist, engineered to deliver the velocity and accuracy .270 Winchester is known for. The rifle-length gas system and custom bolt carrier group are tuned for the cartridge, while a 5/8 x 24 muzzle brake helps manage recoil. You get a 20-inch M-Lok handguard with integrated Picatinny rail for mounting optics and accessories, a Hogue fixed stock for a solid cheek weld, and a standard mil-spec grip. The trigger breaks at 5.5–6 pounds, typical of mil-spec designs. A GLFA custom aluminum magazine feeds 5 rounds.
At 9.25 pounds and 45.50 inches overall, the GL10LA270SSBLK balances shootability with portability—light enough to carry on a hunt, but substantial enough to manage the recoil of a magnum-class cartridge. This is an AR-10 for shooters who want to move beyond 5.56 or 7.62x51 and aren't willing to sacrifice the platform's ergonomics to do it.
| Caliber | .270 Winchester |
| Action Type | Semi-Automatic AR-10 (Long Action) |
| Barrel Length | 24 inches |
| Barrel Material | Stainless Steel (416R) |
| Barrel Rifling | 5R, 1:10 twist |
| Muzzle Brake | Stainless Steel (416R), 5/8 x 24 threads |
| Upper Receiver | Billet Aluminum |
| Lower Receiver | Billet Aluminum (7075) |
| Gas System | Rifle-Length |
| Gas Block | 4150 Steel, Black Oxide Coated, .750 diameter |
| Handguard | 20-inch Aluminum, M-Lok, Integrated Picatinny Rail |
| Stock | Hogue Fixed Rifle Stock, Black |
| Grip | Standard Mil-Spec |
| Trigger | Mil-Spec, 5.5–6 lb pull |
| Magazine | GLFA Custom Aluminum, 5-Round |
| Magazine Capacity | 5 Rounds |
| Overall Length | 45.50 inches |
| Weight | 9.25 lbs |
The .270 Winchester is a proven long-range hunting cartridge known for flat trajectory, high velocity, and excellent energy retention at distance. It offers more power and range than 5.56 or 7.62x51, making it well-suited for hunters pursuing medium to large game or shooters who want inherent long-range performance.
The GL10LA270SSBLK uses a long-action design and is compatible with AR-10 lower parts kits, triggers, and safeties, allowing for customization and maintenance using common aftermarket parts.
The rifle includes a GLFA custom aluminum 5-round magazine and ships fully assembled. It does not include optics or additional accessories.
Yes. The .270 Winchester is a widely-respected hunting cartridge, the 24-inch barrel is optimized for velocity and accuracy, and the AR platform's ergonomics and modularity make it practical for field use.
Firearm Shipments:
To buy rifles or shotguns, you must be 18 years old, and for handguns, actions, or receivers, the minimum age is 21. By placing an order for this firearm, you confirm that you are the legitimate transferee/buyer, meet the legal age requirements, and comply with all Federal, State, and local laws and regulations necessary to purchase this firearm.
We only ship firearms to valid Federal Firearms License (FFL) holders. At checkout we provide a FFL locator for your convenience.
We will need a copy of the FFL’s license to facilitate the process, kindly request your dealer to email us a copy of their FFL, as we cannot dispatch the firearm until we receive this document. It is imperative for the buyer to choose their FFL dealer, ensure they are willing to facilitate the transfer, and have them email their FFL copy to BOSQUE Outdoors. To avoid any confusion, the customer's name or order number must be mentioned in the email containing the FFL.
Email: [email protected]
Great Lakes Firearms
Great Lakes Firearms
Great Lakes Firearms
Great Lakes Firearms
