MPN: BRK4040


  • Internal threads disrupt gas expansion resulting in less flash
  • Outside 13/16x16 thread compatible with Breek Arms CASTLE BLAST SHIELD C-Style Concussion Device
  • Cone shape lockup provides a tighter and more concentric fit
  • Cage style flash hider with incredible resonance reduction
  • Comes with a crush washer


  • Caliber: .30 Cal.
  • Material: 4140 Prehard Steel
  • Finish: Black Nitride
  • Outer Diameter:
    • Body: 0.73"
    • Muzzle End: 0.91"
  • Bore Diameter: 0.43"
  • Weight: 1.98 oz.
  • Length: 2.14"
  • Thread: 5/8"-24 TPI



  • 1x Breek Arms BFO Cage Style .30 Cal. Flash Hider with Outside Thread
  • 1x Crush Washer


In a defensive or combat situation, the violent muzzle flash of your rifle can present many problems. For example, it can cause temporary flash blindness in low light conditions, make it challenging to maintain your sights on target, and give away your position in a tactical setting.

A flash hider can fix these problems, and if you have a .30 caliber rifle or carbine, the BFO Cage Style .30 Cal. Flash Hider from Break Arms is an excellent option. This cage-style flash hider disrupts the glasses coming out of the muzzle and prevents them from lighting up. It also features internal treads, which further improve this ability.

This flash hider has external threads designed to support the Breek Arms CASTLE Blast Shield. This allows you to mount your blast shield over the flash hider and direct all the concussive gasses downrange.

The Breek Arms BFO Cage Style .30 Cal. Flash Hider is made from 4140 Prehard Steel and comes with a black nitride finish. Installing this flash hider is easy and comes with a crush washer for timing.

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  • This Item: Breek Arms BFO Cage Style .30 Cal. Flash Hider with Outside Thread
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