Details
The Rebellion 18-inch AR-15 .450 Bushmaster Rifle Complete Upper Build from Davidson Defense offers a robust and reliable option for gunsmiths who value durability and precision. The upper features an 18-inch "Sepal" barrel made of 4150 Chrome Moly Vanadium steel, with a 1:24 twist rate for optimal performance. The HBAR profile ensures consistency, while the mid-length gas system paired with a micro low-profile gas block allows for smooth cycling. Constructed with a stripped upper receiver made from 7075-T6 forged aluminum and anodized in black, it provides a solid foundation. The 15-inch M-Lok handguard, crafted from aircraft-grade 6061-T6 aluminum, offers versatility for accessory attachment. Complementing components include a complete .450 Bushmaster bolt carrier group made from 9310 alloy steel and a KAK .458 compensator for improved recoil management. This configuration is designed for compatibility with LR-308 lowers, making it an excellent choice for those seeking freedom in their firearms.
Specifications
Caliber: .450 Bushmaster
Barrel Name: "Sepal" 18" .450 Bushmaster 1-24T 4150 CMV Phosphate Steel HBAR
Barrel Length: 18-inch
Barrel Material: 4150 Chrome Moly Vanadium (CMV) Steel
Barrel Twist Rate: 1:24
Barrel Finish: Phosphate
Barrel Profile: HBAR
Barrel Thread Pitch: 5/8×32
Barrel Gas System Length: Mid-Length
Gas Block Size: 0.75
Gas Block Name: Micro Low-Profile Gas Block for .750 O.D Barrel Steel
Gas Block Finish: Phosphate
Gas Block Material: Steel
Complete Upper Name: Stripped Upper Receiver .450/.458, Large Ejection Port
Receiver Material: 7075-T6 Forged Aluminum
Receiver Finish: Anodized Black
Handguard Material: 6061-T6 Aircraft-Grade Aluminum
Handguard Color: Black
Handguard Style: M-Lok
Handguard Length: 15-inch
Charging Handle: Mil-Spec AR-15 M4 Charging Handle
Charging Handle Material: Aluminum
Charging Handle Finish: Anodized
Bolt Carrier Group (BCG): .458 SOCOM/.450 Bushmaster Complete BCG
Bolt Carrier Material: 9310 Alloy Steel
Bolt Carrier Finish: Nitride
Muzzle Device: KAK .458 Compensator 5/8-32
Muzzle Device Finish: Phosphate
Muzzle Thread Pitch: 5/8×32
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