Description
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.
- Internal Threads Disrupt Gas Expansion Resulting in Less Flash
- Heat Treated For Extra Durability
- Design: 3FO – 3 Prong Outside Threaded Flash Hider
- Outside Thread: 13/16 x 16 TPI
- Material: 4140 Prehard Steel Nitrided
- Cone Shape Lockup Provides a Tighter & More Concentric Fit
- Comes with 1 Crush Washer
- Overall length: 2.36 Inches
- Weight: 2.6 oz (223/556) 2.3 oz (30 cal)
- Made in America
Caliber & Thread Options:
- Cal: 223/556; Thread: 1/2×28
- Cal: .30; Thread: 5/8×24
- Cal: 9mm; Thread: 1/2×28
- Cal: 9mm; Thread: 5/8×24
See all of our Outside Threaded Muzzle Device designs here!
CFO : Cage Style Flash Hider Outside Threaded
3FO v2 : 3 Prong Flash Hider Outside Threaded
3FO-S : 3 Prong SHORT Flash Hider Outside Threaded
1BO-S : Single Port SHORT Muzzle Brake Outside Threaded (coming soon)
2BO : Two Port Muzzle Brake Outside Threaded (coming soon)
Castle Blast Shield Outside Threaded Forward Concussion Device
Additional information
| Size: (Required) | 223/556 (1/2x28tpi), 9mm (1/2x28tpi), .30 cal (5/8x24tpi), 9mm (1/2x36tpi) |
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