The Starfall 18-inch AR-15 .450 Bushmaster Rifle Complete Upper Build from Davidson Defense is engineered for reliability and precision. Featuring a "Sepal" 18” barrel made from 4150 Chrome Moly Vanadium, this upper boasts a phosphate finish and a heavy barrel profile. With a 1:24 twist rate and mid-length gas system, the setup ensures optimal performance for both hunting and tactical applications.
The upper receiver, machined from 7075-T6 forged aluminum, is anodized black for durability. A free float extended quad rail handguard allows for versatile accessory attachment. The assembly includes a mil-spec AR-15 M4 charging handle and a micro low-profile gas block designed for a .750 O.D barrel. It also features a KAK .458 compensator for improved muzzle control. The robust .458 SOCOM / .450 Bushmaster bolt carrier group, constructed from 9310 alloy steel, is parkerized and nitride finished for enhanced longevity.
Caliber: .450 Bushmaster
Barrel Name: "Sepal" 18" .450 Bushmaster
Barrel Material: 4150 Chrome Moly Vanadium
Barrel Length: 18 inch
Barrel Finish: Phosphate
Barrel Profile: HBAR
Barrel Twist Rate: 1:24
Barrel Thread Pitch: 5/8x32
Barrel Gas System Length: Mid-Length
Gas Block Size: 0.75
Upper Receiver Name: Stripped Upper Receiver .450/.458, Large Ejection Port
Upper Receiver Material: Machined from 7075-T6 forged aluminum
Upper Receiver Finish: Anodized Black
Handguard Style: Free Float Extended Quad Rail
Handguard Color: Black
Charging Handle: AR-15 M4 Charging Handle Mil-Spec Quality
Gas Block Name: Micro Low-Profile Gas Block for .750 O.D Barrel
Muzzle Device: KAK .458 Compensator 5/8-32
Muzzle Thread Pitch: 5/8x32
Bolt Carrier Name: .458 SOCOM / .450 Bushmaster Bolt Carrier Group
Bolt Carrier Material: 9310 Alloy Steel
Bolt Carrier Finish: Parkerized & Nitride
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