WMD Guns AR-15 A3/A4 Upper Receiver Forged w/M4 Feed Ramps NiB-X Black 1-NIBXURF-Black. Built out with a topcoated NiB-X ejection port cover door and forward assist. Ideal building block for a long lasting AR15. This 7075 T6 Aluminum forged Mil Spec...
WMD Guns AR-15 A3/A4 Upper Receiver Forged w/M4 Feed Ramps NiB-X Black 1-NIBXURF-Black. Built out with a topcoated NiB-X ejection port cover door and forward assist. Ideal building block for a long lasting AR15. This 7075 T6 Aluminum forged Mil Spec...