AR-15 5.56/.223 20" black nitride bull upper assembly

AR-15 5.56/.223 20" black nitride modular bull upper assembly is offered exclusively by Moriarti Armaments. Custom made to order. Please allow 7-10 days for delivery.

The upper receiver features:

Barrel - 20" 416 stainless steel bull barrel  nitride coated. Hardened to 26-32 rc and stress relieved.  Chambered in .223 Wylde (advantage of shooting either .223Rem or 5.56 NATO cartridge). 1-8 rh twist, .875 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 - .936 low profile gas block made from stainless steel for maximum strength. Rifle length gas system.

Handguards -  rifle length free floating slim keymod handguard. Made from aircraft quality aluminum and black hardcoat anodized.*

*This upper maybe purchased with keymod, mlok or quadrail handguard option. Please choose your preference on top of the page. Does not come with BCG or Charing Handle. Maybe purchased separately.

CA and NY compliant.