Great Lakes GL15450SSBRZ | .450 Bushmaster | 18″ 5rd

The Great Lakes GL15450SSBRZ is a purpose-built AR-style chambered in .450 Bushmaster with an 18-inch barrel and bronze Cerakote finish. It pairs modern AR ergonomics — billet upper and lower, mil-spec controls, and a 6-position collapsible stock — with big-bore performance for short- to medium-range field work. For optics, a low-power variable like the Vortex Viper PST 1-6×24 offers a durable, versatile reticle and falls under $1,000, making it a practical choice for this platform.

Typical applications include short- to medium-range hunting in brush and woods environments, and field work where a heavy-for-caliber projectile is preferred for stopping power at close ranges. The rifle ships with one 5-round magazine and a muzzle brake fitted to the barrel.

Product Specifications

• The caliber is .450 Bushmaster.
• The action is semi-automatic.
• The barrel measures 18 inches.
• The rate of twist is 1:24″.
• The magazine capacity is 5 rounds.
• The rifle includes one 5-round detachable magazine.
• The finish is bronze Cerakote.
• The frame/receiver material is 7075 aluminum.
• The upper receiver is a 7075 oversized upper.
• The pistol grip is mil-spec polymer.
• The stock material is synthetic and the stock color is black.
• Sights are listed as none (no iron sights included).
• A muzzle brake is included.
• The rifle is listed as Made in the USA.
• The UPC is 702458691280.

This model is built for shooters who want a stout big-bore AR platform without excess complexity. The billet receiver set and mil-spec controls provide a solid ergonomic baseline, while the five-round magazine configuration keeps the system compact for close-range field use. The bronze Cerakote finish offers weather resistance and a distinctive look without adding unnecessary features.