Spikes STU5025R9S Complete Upper 5.56x45mm NATO 16″ Black Phosphate Barrel, 7075-T6 Aluminum Black Receiver, 9″ BAR2 Free-Float Handguard for M4 Carbine


Upgrade your M4 Carbine with the Spikes STU5025R9S Complete Upper. Mil-spec standards meet robust build quality and exceptional performance.

SKU: 815648021085 Categories: , , ,


Presenting the Spikes STU5025R9S Complete Upper for M4 Carbine. Tailored to law enforcement standards, it’s now accessible to all.

Designed for Performance

  • Manufactured to fully Mil-spec compliant standards.
  • Ensures optimal performance for shooters of any budget.

Robust Build Quality

  • Spike’s Tactical 16″ Mil-spec barrel.
  • Features 1:7 twist for optimal performance.

M4 Barrel Profile and Carbine Length Gas System

  • Comes with an M4 barrel profile.
  • Equipped with a carbine length gas system for reliable function.

Micro Gas Block and Bolt Carrier Group

  • Includes ST micro gas block with .750″ diameter gas seat.
  • Features Spike’s Tactical Mil-spec M16 bolt carrier group.

Free-Float Handguard and A2 Flash Hider

  • Comes with a 9″ BAR2 free-float handguard for improved accuracy.
  • Equipped with an A2 flash hider for reduced muzzle flash.

Note: Crafted from 7075-T6 Aluminum with a black phosphate barrel and receiver for added durability.

The Spikes STU5025R9S Complete Upper is the perfect marriage of strength, functionality, and top-tier standards. A game-changer for your M4 Carbine.

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