WMD NiB-X Stripped Upper Receiver - Forged

Details:
The WMD NiB-X AR-15 Stripped Upper Receiver features their proprietary NiB-X coating inside and out for an exceptionally tough, harder-than-chrome surface that is extremely corrosion resistant and highly lubricious for outstanding wear resistance. Machined from 7075-T6 forgings, this upper includes M4 feed ramps for reliable feeding, and accepts all standard AR-15 upper receiver parts and barrels.
 
Specifications:
Assembly: Stripped
Feed Ramps: M4
Finish: Nickel Boron
Forward Assist: Accepts Standard Forward Assist
Port Door: Accepts Standard Port Cover
Receiver Material: 7075-T6 Aluminum
T Marks: Unmarked