Faxon MuzzLok Mini Plan B Flash Hider 5/8x24 .338 - Muzzle Device

Full flash suppression on a timed, repeatable mount — without crush washers or shims. The Faxon MuzzLok Mini Plan B Flash Hider threads onto 5/8x24-threaded .308-class and larger caliber barrels and locks precisely with a left-hand MuzzLok timing nut, giving you repeatable port orientation every time the device comes off for cleaning or suppressor installation.

The Faxon MuzzLok Mini Plan B Flash Hider is a .338-inch-bore shorter, more compact muzzle device machined from 17-4 PH stainless steel with a nitride finish, designed for 5/8x24-threaded barrels and configured for direct integration with the Plan B suppressor ecosystem.

Four features define the MuzzLok system's advantage over conventional timed muzzle devices. The left-hand MuzzLok timing nut replaces crush washers and timing shims entirely — thread the device to the desired orientation, tighten the nut, and the position locks repeatably without any consumable hardware. The Plan B interface thread (29/32-24 UNEF-2A) mates with a Plan B to HUB adapter for direct compatibility with 1.375-24 HUB-mount suppressors including the Faxon HARMONIX and CORESYNC when configured appropriately. 17-4 PH stainless steel (H1025 heat treat) provides exceptional hardness and corrosion resistance at the muzzle — where heat, carbon, and moisture combine to accelerate wear on lesser materials. The port geometry delivers effective flash signature reduction at typical engagement distances, keeping the shooter's position less visible during low-light use.

Compatible with .338" bore diameter and smaller. Requires a Plan B to HUB adapter for use with 1.375-24 HUB-mount suppressors. Minimum 20 ft-lbs final lockup torque recommended.

17-4 PH stainless steel (H1025), nitride finish. 5/8x24 muzzle thread. Plan B interface thread: 29/32-24 UNEF-2A.

Built for precision rifles, suppressed AR platforms, PCCs, and any 5/8x24-threaded build requiring a repeatable, suppressor-compatible timed muzzle device.

By Faxon Firearms. Made in the USA. Includes Mini flash hider, left-hand timing nut, and installation instructions. Standard Faxon warranty applies.