Description
Spikes Tactical SPIKE’S 556 upper is a complete replacement upper built for compatible AR rifles. It includes a short pinned barrel and a quad rail handguard, and it carries a 1:7 barrel twist. Spikes inspects and test-fires every built upper prior to shipment to verify basic function.
Key Specifications
- The barrel length is 14.5″ Pinned (16″ OAL).
- The caliber is .223 REM/5.56 NATO.
- The barrel twist is 1:7.
- The handguard/accessory style is a Quad Rail.
- The product type is an Upper assembly.
- The subcategory is Complete Upper Receivers.
- Fit is specified as AR Rifles.
- The listed description value is Mid Length.
- The finish/color is Black.
Purpose-built and assembled to Spikes Tactical’s tolerances, this complete upper provides a practical platform for shooters who value a robust quad-rail interface and a short pinned barrel configuration. Its factory inspection and test-fire procedure aim to deliver a reliable, drop-in upper suited for range use, competition, or general-purpose AR applications.






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