AR-15 5.56/.223 16" Spiral Fluted "Black Shark" Upper Assembly / Mlok. CA and NY compliant.
Gas System: Carbine Length Gas System
Chamber: 223 Wylde
Twist Rate: 1/8 button rifled
Barrel: 16" heavy barrel, 4150V steel, chrome moly, heat treated, black, M4 feedramps, .750 gas block diameter, spiral fluted, parkerized
Muzzle Device: Thread 1/2x28 custom steel SHARK muzzle brake
Handguard: Mid Length Slim Mlok Free Float (optional quadrail, shown)
A3 flat top upper receiver - Made from certified 7075-T6 aluminum forgings, black hardcoat anodized to gov. specs.; forward assist and dust cover installed
Upper comes fully assembled. Does not come with BCG and/or Charging Handle. May be purchased separately.