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Faxon FX8608 Sentinel 8.6 Blackout 8in Big Gunner Barrel

Faxon FX8608 Sentinel 8.6 Blackout 8in Big Gunner Barrel

SKUTSW|190399 Conditionnew CategoryAR Pistols
$1912.27
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About this product

The Faxon Firearms FX8608 Sentinel is an AR-style pistol chambered in 8.6 Blackout with an 8″ Big Gunner profile barrel. It uses a billet aluminum receiver set and a G3 Aluminum Streamline M-LOK handguard for a durable, compact build. The platform includes an 8.6 BLK MuzzLok muzzle device and a 1:3 twist Big Gunner profile barrel. The Sentinel is configured with a black polymer B5 grip and a Picatinny rail for optics or accessories.

Key Specifications

  • The caliber is 8.6 Blackout.
  • The barrel length is 8″.
  • The barrel uses a Big Gunner profile with a 1:3 twist.
  • The muzzle device is an 8.6 BLK MuzzLok.
  • The receiver set is billet aluminum.
  • The handguard is a G3 Aluminum Streamline M-LOK design.
  • The firearm includes a Picatinny rail on the receiver.
  • The overall length measures 24.50″.
  • The listed weight is 6.59 lbs.
  • The grip is a black polymer B5 style.

This Sentinel configuration delivers a compact, well-appointed platform for users who prioritize maneuverability and robust construction in a short-barrel AR pistol. Quality components like the billet aluminum receiver set, M-LOK handguard, and Big Gunner barrel profile provide a solid foundation for accessory mounting and consistent handling in close-quarters or short-range precision applications.

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Specs at a glance

Faxon FX8608 Sentinel 8.6 B… SPECS AT A GLANCE 6.59 lbs WEIGHT
Editorial diagram — measurements verified during testing.
Sources & methodology. Editorial review and rating by Travis Caldwell based on hands-on testing notes and published vendor specifications. Pricing verified at time of publication.
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$1912.27