Great Lakes Firearms and Ammunition AR-15 OD Green .450 Bushmaster 18″ Barrel 5-Rounds

GLFA AR-15 .450 Bushmaster OD Green Cerakote Features

The GLFA AR-15’s 18-inch barrel is designed for maximum accuracy and performance with the .450 Bushmaster caliber. The barrel’s 1:24 twist rate optimizes bullet stability, while the OD Green Cerakote finish provides additional protection against harsh conditions. This rifle does not feature an ambidextrous safety but comes with a Mil-spec, polymer grip and a 15.25″ Aluminum 6061 handguard with a full Picatinny rail for accessory attachment.

This model also includes a specially designed muzzle brake that projects gases 6 degrees forward, effectively reducing recoil and improving shooter comfort. The absence of sights encourages shooters to customize their optic setup, and the Mil-spec trigger offers a reliable 5.5-6 lb pull for consistent firing. The rifle’s mid-length gas system, combined with a 0.750 gas block, ensures smooth operation and reliability.

GLFA AR-15 .450 Bushmaster OD Green Cerakote Specifications

• Manufacturer: GLFA
• Model: AR-15
• Action: Semi-Automatic
• Caliber: .450 Bushmaster
• Barrel: 18 inch, 1:24 Twist, 11/16 x 24 threads
• Finish: OD Green Cerakote
• Frame Material: Aluminum 7075
• Handguard: 15.25″ Aluminum 6061, Full Picatinny Rail
• Magazine Capacity: 5 Rounds
• Muzzle Brake: Included, 6 degrees forward
• Sights: None
• Trigger: Mil-spec, 5.5-6 lb pull
• Overall Length: 35.00″
• Weight: 6.4 lbs