Rock River Arms AR0784 LAR-15M NM A4 Complete Upper delivers precision performance with a .223 Wylde chamber that accepts both 5.56mm and .223 caliber ammunition. The forged A4 upper receiver pairs with a 20-inch air gauged heavy match stainless steel barrel featuring a 1:8 twist rate and cryogenic treatment for enhanced durability.
The muzzle is fitted with an A2 flash hider with 1/228 threading, while a gas block sight base manages the shooting cycle. The RRA NM CMP TRO aluminum handguard measures 12.5 inches in rifle length and floats freely for consistent accuracy, incorporating three 11.625 inch rifle length NM TRO modular rails for mounting accessories.
This complete upper includes both the bolt carrier group and charging handle assembly, providing everything needed for a functional upper receiver.
