FAXON URSSB556-SS-MB ARAK21 16 556 COMP UPPER MB

The Faxon Firearms URSSB556-SS-MB ARAK21 16 556 Compensator Upper Receiver is a precision upper receiver assembly designed to maximize AR-15 platform reliability and accuracy for demanding shooters. Built around a 16-inch stainless steel barrel paired with a muzzle brake, this upper delivers consistent performance across training regimens, competitive shooting, and tactical applications. Stainless steel construction provides corrosion resistance and durability in varied environmental conditions while maintaining the mechanical consistency required for tight shot groups.

The 16-inch barrel length balances velocity retention with handling characteristics suitable for mid-range engagements and defensive scenarios. Faxon's stainless steel barrel profile resists environmental degradation and maintains dimensional stability under sustained fire. The integrated muzzle brake reduces recoil impulse and helps manage shot-to-shot transition time, a practical benefit during rapid strings of fire. The upper receiver is engineered for direct bolt-on integration with standard AR-15 lower receivers, streamlining the build or upgrade process for shooters who already operate within the platform ecosystem.

This upper suits operators, competitive shooters, and precision rifle enthusiasts seeking a modular platform with proven materials and straightforward assembly. The 5.56 NATO chambering provides compatibility with abundant commercial ammunition and high-capacity magazines, making it practical for extended range sessions and operational deployment. Faxon's reputation for barrel quality and precision machining ensures that end-users receive a component built to consistent tolerances, reducing the variability sometimes encountered in budget-tier AR-15 upper receivers and supporting repeatable accuracy over the service life of the firearm.