Great Lakes GL10LA300SSBLK | .300 Win Mag | 24in

The Great Lakes GL10LA300SSBLK is an AR-10 style semi-automatic rifle chambered in .300 Winchester Magnum built on billet 7075 aluminum upper and lower receivers. It ships with a 24in 416R stainless steel barrel with 5R rifling and a 1:10 rate of twist, a 20in M-LOK handguard and a Hogue fixed OverMolded stock. For optics under $1,000 that pair well with the platform, consider a Vortex Crossfire II 3-9×40 for general precision work and long-range hunting practice.

Applications include long-range hunting and precision target shooting where magnum performance is required from a semi-automatic AR-10 form factor.

Product Specifications

• The caliber is .300 Winchester Magnum.
• The barrel measures 24 inches and is made from 416R stainless steel with 5R rifling and a 1:10 twist.
• The muzzle device is a 5/8×24 stainless steel muzzle brake.
• The action is Semi-Automatic.
• The rifle uses a rifle gas system with a .750 4150 steel gas block finished in black oxide.
• The upper and lower are machined from 7075 aluminum billet.
• The handguard is a 20 inch aluminum M-LOK with an upper Picatinny rail.
• The stock is a Hogue fixed OverMolded synthetic stock in black.
• The magazine is a 5-round GLFA custom aluminum detachable magazine.
• The bolt carrier group is listed as a custom design and the charging handle is a custom design.
• The overall length is listed as 45.5 inches.
• The product is listed as Made in the USA.
• The UPC is 638457792805.

This GL10LA300SSBLK combines billet construction with a long, 24in stainless barrel and a 20in M-LOK handguard to create a magnum-capable AR-10 platform suitable for extended-range shooting sessions and field use where magnum ballistics are desired. The included muzzle brake, billet receivers and fixed Hogue stock emphasize stability and consistent handling for follow-up shots and sustained accuracy.