The GLFA AR-15 in .450 Bushmaster is Great Lakes Firearms and Ammunition's take on a hard-hitting MSR for hunting and field use. The 18-inch barrel with a 1:24 twist is optimized for the .450 Bushmaster round, and the mid-length gas system softens the recoil impulse compared to carbine-length setups. At 6.4 lbs, the gun stays portable despite the heavier caliber. The bronze Cerakote finish is durable and weather-resistant. The 15.25-inch full Picatinny rail handguard gives plenty of room for mounting optics, lights, or other accessories. Capacity is 5 rounds. 
 

Key Specifications 

• Manufacturer: Great Lakes Firearms and Ammunition 
• Model: AR-15 
• Type: Modern Sporting Rifle 
• Caliber: .450 Bushmaster 
• Barrel Length: 18 inches (1:24 Twist) 
• Capacity: 5 rounds 
• Weight: 6.4 lbs 
• Finish Color: Bronze (Cerakote) 
• Frame Material: Aluminum 7075 
• Gas System: Mid-Length 
• Handguard: 15.25-inch Full Picatinny Rail 
• Condition: New in Box

The GLFA AR-15 in .450 Bushmaster draws most of its fans from the hunting community, and the bronze finish gets attention from everyone — it's a different look in a sea of black rifles. Users report the construction as solid and the gun as reliable across a range of conditions.

The .450 Bushmaster round is the central topic. Hunters who've taken medium to large game with it are generally enthusiastic about terminal performance. Recoil is a common discussion point — it's noticeably heavier than standard AR calibers, and proper technique matters more here than with a 5.56. Most adapt quickly; a few find it more than they want to deal with.

Ammo availability and cost are the consistent practical complaints. The .450 Bushmaster is less widely stocked than common AR calibers, and the price per round is higher. That's not a GLFA problem specifically, but it's a real factor for anyone considering this gun for regular practice. Customization discussions are lively — the AR platform's modularity applies here and users share a lot of optics and accessory recommendations.