AR-15 5.56/.223 16" M4 SLIM KEYMOD UPPER ASSEMBLY FEATURES:
Gas System: Carbine Length Gas System
Chamber: 5.56 NATO/.223 Wylde
Twist Rate: 1/9* button rifled
Muzzle Device: Thread 1/2X28 Birdcage Flash Hider
Barrel: 16" M4 hbar contour, 4150V steel, chrome moly, heat treated, black, M4 feedramps, .750 gas block diameter
Handguard: 12" Slim Keymod Free Float
A3 flat top upper receiver - Made from certified 7075-T6 aluminum forgings, black hardcoat anodized to gov. specs.; forward assist and dust cover installed
Does not come with BCG and Charging Handle. Can be purchased separately. There maybe variations in handguard design, depending on stock availability. The same excellent quality.
CA and NJ compliant. We ship to all of the USA.