Great Lakes | GLFA AR-15 450BM 18″ .450 Bushmaster | 5rd

The Great Lakes GLFA AR-15 450BM is a modern sporting rifle chambered in .450 Bushmaster with an 18-inch 4150 CRMOV nitride-treated barrel and a 1:24″ rate of twist. It is built on 7075 billet components and finished in Pursuit Snow Camo Cerakote, with a 15″ M-LOK aluminum handguard and a six-position collapsible stock for adjustable ergonomics. This semi-automatic platform ships with a single 5-round modified Lancer magazine and is configured for field use where large-bore, short- to medium-range performance is required. For an optic under $1,000 that pairs well with this rifle, consider the Vortex Viper PST Gen II 1-6×24 mounted on low 30mm/34mm rings for fast target acquisition and crisp short-range performance.

Product Specifications

• The rifle is chambered in .450 Bushmaster.
• The action is Semi-Automatic.
• The barrel measures 18 inches and is described as nitride-treated 4150 CRMOV.
• The barrel finish/material is listed as 4150 CRMOV nitride.
• The rate of twist is 1:24″.
• The handguard is a 15″ M-LOK aluminum design.
• The firearm uses 7075 billet upper/lower components.
• The magazine capacity is 5 rounds.
• The rifle comes with one 5-round modified Lancer magazine.
• The magazine is detachable.
• The stock material is synthetic with a 6-position collapsible configuration.
• Sights are listed as none (no iron sights included).
• The weight is listed as 8.05 pounds.
• A recoil pad is present and listed as Yes.
• The UPC is 638457792102.

This GLFA build combines large-bore performance with AR-platform ergonomics and modern accessories. The Pursuit Snow Camo Cerakote and billet construction give the rifle a distinct appearance while the 15″ M-LOK handguard provides modularity for lights, bipods, or other attachments. If you need a straight-forward, purpose-built .450 Bushmaster AR that balances handling and near-field stopping power, this model is configured to perform.