The Spike's Tactical M4 flat top upper receiver is machined from a Mil-Spec 7075 T6 Aluminum forging with a durable Type III Hardcoat Anodized finish that also features laser engraved T-Markings, M4 feed ramps cut into the receiver before Anodizing to avoid future reliability issues, and finished with the Spike's Tactical spider logo. A forward assist and ejection port door cover are also already installed in the upper.
|Sights||None, Optic Ready|
|Receiver Description||7075-T6 Aluminum M4|
|Receiver Finish||Black Hard Coat Anodized|