AR-15 .450 Bushmaster 16" steel black nitride upper assembly, This drop-in .450 Bushmaster upper will attach to virtually any milspec AR-15 lower assembly. Available in 4150 Steel Black Nitride Finish, with 1 and 24" twist and 12" Moriarti midlength slim mlok.
Barrel - 16" 4150CMV steel black nitride hbar barrel, single feedramps, non-fluted. Chambered in .450 Bushmaster. Button rifled with 1-24 rh twist. .936 under gas block diameter. Threaded 5/8x32. Carbine gas system. Barrel is finished off with a tanker muzzle brake in hardened steel construction, black.
A3 flat top upper receiver - made from certified 7075-t6 aluminum forgings. Black hardcoat anodized to Gov. Specs. Forward assist and dust cover installed. Socom style for big bore calibers
Gas system - .936 low profile gas block, made from aircraft quality steel. Mid-length gas system.
Handguards - Mid-length 12" mlok free float rail. Made from aircraft quality aluminum and black hard coat anodized.
Does not come with BCG or Charging Handle. Can be purchased separately.
If you like this upper, you might also like a sister twin in 308 caliber! Images may not be an exact representation of the product.
