Q: Will this work with .270 Win?

Asked by: Dave - 2/25/2025
A: No.
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Answer provided by: Fortis MFG (2/26/2025)
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Q: Hey guys would this fit a 9mm Ar style rifle?

Asked by: The johnson’s - 2/13/2025
A: This depends on the thread pitch of your barrel. For a 9mm AR, the common thread size is typically 1/2x28. However, the thread pitch of this muzzle brake is 5/8x24, so it generally will not fit.

Additionally, a brake designed for .30 caliber rifles might not be as effective for a 9mm AR, which has less recoil and a smaller diameter bullet. Ideally, you would want a brake specifically designed for 9mm, as it would be better optimized for the cartridge's characteristics. We recommend using our 9mm muzzle brake, linked below.

https://fortismfg.com/ar15-fortis-muzzle-brake-9mm-nitride-28
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Answer provided by: Fortis MFG (2/13/2025)
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Q: Does this muzzle brake work with your control shield 2 ? Or is this break for the original shield.

Asked by: Cayden - 12/23/2024
A: This muzzle brake is only compatible with the original Control Shield. Only our Slipstream line of muzzle brakes are compatible with the new Control Shield Gen II.
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Answer provided by: Fortis MFG (12/23/2024)
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Q: Is this muzzle brake self timing?

Asked by: Mason - 12/6/2024
A: No.
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Answer provided by: Fortis MFG (12/6/2024)
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Q: Does this work with 6.5 Grendel

Asked by: David Billeaudeau - 2/7/2024
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Q: What suppressors are compatible with this muzzle device?

Asked by: Danny Garza - 10/14/2023
A: Only our Control Shield will work with our muzzle devices.
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Answer provided by: Mike H (10/16/2023)
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Q: Will this work on 350 legend AR pistol? 5/8 x24 TP

Asked by: Steve - 7/2/2023
A: Yes, it will work. That is the correct thread pitch.
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Answer provided by: Fortis MFG (7/3/2023)
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Q: Will this work on a 308 rifle or will it damage the rifle

Asked by: William Parten - 3/25/2023
A: It will work with a 308 rifle but is not specifically tuned for .308. With the port design it will push your muzzle down quite a bit.
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Answer provided by: Mike H (3/29/2023)
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Q: I have a Ruger American rifle chambered in 308 will this work or damage the barrel

Asked by: William Parten - 3/25/2023
A: It will work with a 308 rifle but is not specifically tuned for .308. With the port design it will push your muzzle down quite a bit.
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Answer provided by: Mike H (3/29/2023)
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Q: Ate any of these for .300 blackout?

Asked by: Bebe - 1/21/2023
A: Yes this muzzle brake works for 300BLKOUT.
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Answer provided by: Fortis MFG (1/23/2023)
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Q: Will this Muzzle break work on a 6.5 Creedmoor? And does the blast shield also fit? I have your brake and shield for my 556 and love it. Want to add one to my AR 10-6.5 Creedmoor. Thanks Eric

Asked by: Eric W Balinski - 1/10/2023
A: Eric,

Yes it will work on a 6.5 Creedmoor but is not optimized for it. The Blast Shield will also work with the .30 Cal Muzzle Brake.
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Answer provided by: Mike H (1/12/2023)
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Q: Will this fit 556/233 cal?

Asked by: MRk - 10/26/2022
A: This muzzle device is threaded 5/8x24. If your 5.56/.223 barrel is threaded 5/8x24 it will fit and work with your set up. If it is threaded 1/2x28 this muzzle device will not fit without a thread adapter (which is not recommended).
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Answer provided by: Mike H (10/26/2022)
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Q: Will this break and the control shield work on a 308 ar 10?

Asked by: Ace - 7/12/2022
A: Unofficially yes, since it is not optimized for 308.
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Answer provided by: Mike H (7/20/2022)
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Q: Hello! I love this freakin muzzle to death. No complaints there. However, I over tightened and need a new crush washer for this guy if at all possible, is there any chance you guys would be able to send me another one?

Asked by: Carter - 6/22/2022
A: Shoot us an email and we'll get you squared away.
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Answer provided by: Mike H (6/22/2022)
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