AR-15 5.56/.223 16" black diamond modular bull upper assembly is offered exclusively by Moriarti Armaments. The upper receiver features:
Barrel - 16" 416 stainless steel bull contour barrel with black diamond fluting. Hardened to 26-32 rc and stress releived. Chambered in 5.56 nato (also accepts .223 rounds). 1-9 rh twist 6 groove button rifled, .936 under gas block. Target crowned - not threaded. M4 feedramps.
A3 flat top upper receiver - made from certified 7075-t6 aluminum forgings. Black hardcoat anodized and teflon coated to gov. specs. Forward assist and dust cover installed. M4 feedramps.
Gas system - low profile gas block made from stainless steel for maximum strength. Carbine length gas system.
Handguards - mid-length free floating slim mlok handguard. Made from aircraft quality aluminum and black hardcoat anodized.*
*Does not come with BCG or Charging Handle. Maybe purchased separately. We may have slight variation in rail design, based on stock availability. The same excellent quality.
CA and NY compliant.