Description
Rule the CQB Game – Micro Zombie 5″ AR-15 Complete Upper Receiver
Step into next-level performance with the Micro Zombie 5″ AR-15 Complete Upper Receiver, engineered for fast, agile, and aggressive tactical builds. Whether you’re chambered in .300 Blackout or 5.56 NATO, this ultra-compact powerhouse is ideal for close-quarters, vehicle operations, and high-mobility shooters.
Compact Size. Full-Spectrum Firepower.
This upper is built around a 5-inch heavy-profile barrel for enhanced thermal control and consistent accuracy. Paired with a micro-length gas system and adjustable gas block, you get smooth, dependable cycling in suppressed or unsuppressed setups.
Control Meets Carnage:
Unleash chaos with premium upgrades built into this complete system:
✅ Zombie Muzzle Brake – Aggressively ports gases for reduced muzzle rise and recoil control
✅ Angled Foregrip – Natural wrist alignment for rapid target transitions
✅ Ambidextrous Charging Handle – Smooth function for both left- and right-handed operators
✅ Compact M-LOK Handguard – Lightweight, modular, and mission-flexible
✅ Pre-Assembled Upper – Precision-fitted and drop-in ready
Specs at a Glance:
Caliber Options: .300 Blackout or 5.56 NATO
Barrel: 5″ Heavy Profile – suppressor-ready and optimized for short-range precision
Gas System: Micro-length with adjustable gas block
Muzzle Device: Zombie Muzzle Brake – tuned for aggressive recoil mitigation
Foregrip: Angled foregrip for control in high-speed applications
Handguard: Slim M-LOK compatible rail system
Charging Handle: Ambidextrous design for tactical flexibility
Upper Type: Complete AR-15 Upper Receiver – plug-and-play install
Perfect For:
CQB / Home Defense Builds
PDW & Truck Gun Setups
AR Pistol Conversions
Tactical Shooters Seeking Maximum Control in Minimal Space
Why Go Micro Zombie?
Aggressive by design. Compact by choice.
The Micro Zombie Upper Receiver fuses raw function with brutal efficiency. From recoil-dampening hardware to mission-first ergonomics, this upper is built to dominate tight quarters and deliver consistent performance with every pull.



