Faxon Firearms Match Series Gunner Complete AR-15 Upper Receiver - 6mm ARC - 12.5" - Suppressor Ready

The Faxon Firearms Match Series Gunner Complete AR-15 Upper Receiver in 6mm ARC at 12.5", Suppressor Ready, pairs a 416-R stainless barrel with an adjustable gas block, bringing long-range 6mm ARC ballistics to a compact, suppressor-tunable AR pistol or SBR build.

Features:

• 12.5" 416-R stainless Gunner-profile barrel, 1:7.5 twist, Nickel Teflon extension
• Carbine-length gas system, adjustable .750" low-profile gas block
• MuzzLok Plan B flash hider, 5/8x24, .375" bore, stainless nitride
• 10.75" Streamline M-LOK handguard
• SuperFinished Type 2 ARC BCG, nitride (included)
• Breek Sledgehammer gas-blocking charging handle (included)

The adjustable gas block lets you tune gas flow precisely for suppressed or unsuppressed use and across subsonic and supersonic 6mm ARC loads, and the Plan B flash hider accepts HUB-compatible suppressors directly — including Faxon's own HARMONIX and CORESYNC models — with repeatable timing and no crush washer. The 416-R stainless barrel with in-house button rifling and MPI inspection delivers sub-MOA potential with the right ammunition and optic.

Lower receiver, brace or stock, and magazine are sold separately — this upper covers everything from the barrel to the charging handle.

Lower receiver, brace or stock, and magazine are sold separately — this upper covers everything from the barrel to the charging handle. It's well suited to suppressed hunting, precision SBR builds, and long-range competition setups where a compact, quiet 6mm ARC pistol is the goal.

Faxon Firearms manufactures and assembles every barrel in-house at its Cincinnati, Ohio facility, keeping quality control in-house from rifling through final inspection.