The Spike’s Tactical Ejection Port Door “Zombie Killer” AR-15 Black Phosphate Steel (SED7007, UPC 815648020248) is a Mil-Spec replacement dust cover designed to personalize AR-15 upper receivers while maintaining standard function and durability. Constructed from stamped steel and finished with a heavy black phosphate coating, this ejection port door features a laser-engraved “Zombie Killer” marking and is dimensioned to work with most right-hand, Mil-Spec AR-15 upper receivers. Palmetto State Armory+2Primary Arms+2
Model Identification and Platform Compatibility
Key catalog identifiers for this component include:
The SED7007 dust cover is built to Mil-Spec dimensions, making it suitable for most AR-15 pattern uppers that use standard ejection port door hardware and geometry. Palmetto State Armory+2Primary Arms+2
Construction, Materials, and Finish
The Spike’s Tactical Zombie Killer ejection port door uses materials and finishes common to Mil-Spec AR components:
Typical listed weight for this series of Spike’s Tactical doors is approximately 0.5 oz, keeping added mass negligible while maintaining robust construction. Palmetto State Armory+1
The steel/phosphate combination is intended to withstand routine handling, environmental exposure, and repeated cycling in field and range conditions.
Laser Engraving and Markings
The defining characteristic of the SED7007 model is its engraved marking:
Laser engraving cuts cleanly through the surface coating, producing a high-contrast, durable marking that resists fading under normal use.
Functional Role and Performance
Despite its cosmetic upgrade, the SED7007 is a fully functional AR-15 dust cover:
Primary function:
Shields the ejection port area when closed, helping keep dust, dirt, and debris out of the bolt carrier group and chamber region. GrabAGun+1
Operation:
Uses standard AR-15 ejection port door hardware (hinge pin, spring, and C-clip).
Door remains closed under spring tension until opened by the bolt carrier during firing, just like a standard Mil-Spec cover. Primary Arms+2cheaperthandirt.com+2
The part is designed so that replacing a factory dust cover with the SED7007 does not change the mechanical behavior of the rifle, provided installation is correct.
Hardware and Installation Notes
Most retailers specify that the Spike’s Tactical Zombie Killer port door is sold as the door only:
Included: Ejection port door (cover) with engraved marking.
Not included: Hinge pin, hinge pin spring, or C-clip – these are typically reused from the existing upper or purchased separately. Primary Arms+2cheaperthandirt.com+2
Installation overview (high level):
Ensure the firearm is unloaded and the upper receiver is separated from the lower.
Remove the existing ejection port door by carefully withdrawing the hinge pin and controlling the spring and C-clip.
Position the SED7007 door, align the spring, and reinstall the hinge pin and clip.
Function-check by closing the door and cycling the bolt carrier group to verify that it opens and closes properly.
The part is designed as a drop-in Mil-Spec replacement; users familiar with AR-15 upper assembly can typically install it with basic tools.
Durability, Environmental Resistance, and Maintenance
The combination of stamped steel and phosphate coating is selected for long service life:
Corrosion resistance: The phosphate layer helps protect the steel substrate against rust when exposed to humidity, fingerprints, and cleaning solvents, assuming standard firearm maintenance. Palmetto State Armory+2GrabAGun+2
Wear resistance: Steel construction tolerates impacts from brass cases and normal contact during transport and handling.
Engraving longevity: Because the “Zombie Killer” marking is laser engraved into the coated surface, it remains legible even as the finish experiences minor wear. Palmetto State Armory+2Primary Arms+2
Cleaning is usually limited to wiping with standard gun-care cloths and light solvent as needed; aggressive abrasives are not recommended if preserving cosmetic appearance is a priority.
Typical Use and Application
The Spike’s Tactical Ejection Port Door Zombie Killer SED7007 is intended for AR-15 builders and owners who want:
It is suitable for:
General-purpose AR-15 builds.
Themed or personalized rifles where engraved small parts are used to differentiate components.
Range and recreational rifles where aesthetic customization is desired alongside reliable performance.
Technical Specifications (Summary)
Spikes Ejection Port Door Zombie Killer AR-15 Black Phosphate Steel – SED7007
By combining Mil-Spec stamped steel construction, a black phosphate finish, and laser-engraved “Zombie Killer” markings, the Spikes Ejection Port Door Zombie Killer AR-15 Black Phosphate Steel SED7007 (UPC 815648020248) provides a functional, drop-in dust cover upgrade that preserves standard AR-15 performance while adding a durable, personalized visual element to modern AR builds.
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