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

The Faxon URSSB556-SS-MB ARAK21 16 556 Comp Upper MB is presented in the source data as an AR upper assembly. The product name provided includes the elements “16” and “556” exactly as shown; no structured attribute set was supplied with the listing. The supplier image is available from the provided product media but detailed technical specifications are not included in the dataset.

Key Specifications

• The manufacturer is FAXON FIREARMS.
• The model designation is URSSB556-SS-MB ARAK21 as shown in the product name.
• The product name includes 16 in its title.
• The product name includes 556 in its title.
• The configuration is listed as an AR upper assembly in the provided name.
• Technical details (gas system, materials, finish, exact chambering, muzzle device, weight, and fitment specifics) are not provided in the source data and require verification.

This upper is intended for builders and shooters assembling or upgrading an AR platform and is appropriate for range use, target work, and comparable general shooting applications when combined with a compatible lower. Review the missing technical details to ensure compatibility with your build and intended use before finalizing a purchase decision.