Description
The Area 419 Hellfire Universal Adapter, 5/8-24 muzzle thread, is the barrel-mounted half of the Area 419 Hellfire modular muzzle brake system. It is machined by Area 419 in the USA and fits any barrel threaded 5/8-24; once torqued on, any Hellfire self-timing muzzle brake or Hellfire suppressor mount can be fitted or removed by hand without tools, so one PRS or hunting rifle can change from brake to can, or share a brake across several rifles with their own adapters.
The adapter uses a tapered mating surface, similar to a machine-tool taper, to align the brake precisely with the muzzle threads, and it is turned in a single CNC operation to guarantee concentricity with the bore. All Universal Adapters are black nitrided and are cut with class 3 threads. Area 419 specifies 25 ft-lb torque to the barrel. The adapter is sold on its own; the Hellfire brake or suppressor mount is purchased separately. Do not clean the nitride finish with citric-acid cleaners such as Lemishine or CLR, which will discolour it and void the lifetime warranty.
- Area 419 Hellfire Universal Adapter – 5/8-24 muzzle thread, class 3
- Tool-free attachment of Hellfire self-timing muzzle brakes and Hellfire suppressor mounts
- Tapered alignment surface for the best possible concentricity with the muzzle threads
- Machined in one CNC operation for concentricity with the bore
- Black nitride finish
- Torque spec to barrel: 25 ft-lb
- Other threads available from Area 419: 1/2-28, 1/2-36, 9/16-24, 9/16-32, 5/8-24, 5/8-32, 11/16-24, 3/4-24, M15x1, M18x1, M18x1.5
- Lifetime warranty; made in the USA by Area 419
FAQ
Which barrels does the 5/8-24 adapter fit? Any barrel with a 5/8-24 class 3 muzzle thread. Choose the adapter to match your barrel thread; the Hellfire brake or suppressor mount then fits any Universal Adapter regardless of thread size.
Does it include the muzzle brake? No. This is the adapter only. It is used with Area 419 Hellfire self-timing muzzle brakes or Hellfire suppressor mounts, which are sold separately.
What torque should I use? Area 419 specifies 25 ft-lb to the barrel. Avoid citric-acid cleaners (Lemishine, CLR) on the black nitride finish, as they discolour it and void the warranty.
3 Gun Tactical is a licensed firearms dealer (Dealer Licence 50001578) in Tingalpa, Brisbane. No licence is needed to buy this item; we ship Australia-wide or you can collect in store.





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