3FO Flash Hider V2 Outside Threaded - .223/5.56, 9mm, .30 Caliber

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The 3FO v2 Flash Hider is machined out of heat treated 4140 then nitrided offering exceptional strength and reliability. The primary function of the 3FO diminishes muzzle flash by dispersing and redirecting the escaping gases generated by the fired round, thus minimizing the signature flash produced at the muzzle maintaining your tactical advantage in critical situations. 

The 3FO's internal threads is a significant design advantage offering even more flash suppression over standard flash hiders. The reduced flash not only helps maintain a clear sight picture but also reduces the chances of the shooter being temporarily blinded in low-light conditions, ensuring optimal visibility and target acquisition. It features a sleek, low profile design that integrates seamlessly with your system, maintaining a clean and streamlined appearance.

  • Internal Threads Disrupt Gas Expansion Resulting in Less Flash
  • Design: 3FO - 3 Prong Outside Threaded Flash Hider
  • Outside Thread: 13/16 x 16 TPI
  • Material: 4140 Steel Heat Treated & Nitrided
  • Cone Shape Lockup Provides a Tighter & More Concentric Fit
  • Comes with 1 Crush Washer
  • Overall length: 2.12 Inches
  • Weight: 2.4 oz (223/556) 2.0 oz (30 cal)
  • Made in America

Caliber & Thread Options:

  • Cal: 223/556; Thread: 1/2x28
  • Cal: .30; Thread: 5/8x24
  • Cal: 9mm; Thread: 1/2x28
  • Cal: 9mm; Thread: 5/8x24

Breek Arms’ lineup of Outside Threaded Muzzle Devices is an affordable upgrade that gives you the option to run a flash hider or muzzle brake while utilizing our Breek Arms Castle Blast Shield as a forward blast diverter or concussion device. Simply slide the Blast Shield over the outside of the muzzle device and turn the blast shield on. This gives the shooter a more pleasant experience when firing especially for shorter platforms that tend to have an overbearing concussion. Added durability due to an updated heat treating process that increases reliability for higher muzzle pressures. Installation of all Breek Arms muzzle devices are very straightforward and require basic hand tools. 

See all of our Outside Threaded Muzzle Device designs here!

BFO : Cage Style Flash Hider Outside Threaded 

3FO v2 : 3 Prong Flash Hider Outside Threaded

3FO-S : 3 Prong SHORT Flash Hider Outside Threaded

2BO-S : Single Port SHORT Muzzle Brake Outside Threaded

2BO : Two Port Muzzle Brake Outside Threaded

Castle Blast Shield Outside Threaded Forward Concussion Device

6 Reviews Hide Reviews Show Reviews

  • 5

    Posted by Eddie on May 13th 2023

    Works great couldn’t ask for anything more!!!

  • 5
    3FO/Hager and 30 caliber looks to be very well-made !!

    Posted by Al estrada on Mar 27th 2023

    This flash hider flash muzzle brake is very well-made was easy to install, came with a crush washer, and I purchased the optional blast shield with it. I actually got two and two. I have not fired the rifle since I installed it, but will probably be doing that soon if you haven’t purchased one, I recommend you keep your eye open, I got a good deal on this last set by one or two !!

  • 5
    Best I’ve seen

    Posted by KDRABBIT on Mar 13th 2023

    Was wanting a 3 prong flash hider. Most I’ve used have been lacking strength/reliability in extreme conditions. Tried this Breek Arms and have been very pleasantly surprised. Touch heavier than others but more robust and reliable for breaching and face/ body strikes. Also threaded to easily attach forward sound diverter. Excellent shipping and delivery.

  • 3
    3FO Flash Hider V2 Outside Threaded - .223/5.56, 9mm, .30 Caliber

    Posted by M Webb Rooney on Jan 11th 2023

    I have bought several of these in .223. So far I have some that work perfectly fitting an armorers wrench, some that are slightly too large for the wrench to fit and some that are much larger than the wrench. I have no idea why there is that much variance in size.

  • 5

    Posted by craig anderson on Jan 3rd 2023

    At this point it seems to be pretty comparable to the Surefire

  • 5
    Inexpensive but effective.

    Posted by Jon Anthony Beck on Dec 28th 2022

    Looks awesome, finish is great, everything went together fine and reduces flash as advertised. Can’t be mad.