The Spike's Tactical M4 Flat Top Upper Receiver is built for reliable AR-platform performance, machined from Mil-Spec 7075-T6 aluminum forging and finished in Type III hardcoat anodized black. It features M4 feed ramps cut into the receiver prior to anodizing to help maintain consistency and long-term reliability. Laser-engraved T-markings and the Spike's Tactical spider logo complete the receiver, with a forward assist and ejection port door cover already installed.

Key features

• Machined from Mil-Spec 7075-T6 aluminum for a strong, lightweight build
• Type III hardcoat anodized black finish for durability and wear resistance
• M4 feed ramps cut into the receiver before anodizing to support reliable feeding
• Laser-engraved T-markings and spider logo for clear, professional detailing
• Forward assist and ejection port door cover are installed on the upper

Upgrade your build with a solid Spike's Tactical foundation—ready for your choice of lower and barrel setup.