Q: I purchased this item but it doesnt fit over my FORTIS muzzle break as expected. What am I doing wrong? I have two different Fortis Muzzle breaks and it doesnt fit over either one. It will go over the break 1/2 way and it doesnt turn to lock into place???

Asked by: Ric - 5/12/2026
A: Only the Fortis Slipstream muzzle brakes fit our Gen II Control Shield. If you have Slipstream muzzle brakes and they do not fit, please contact [email protected] so we can take a look. Thank you. Here's a link to one of our Slipstream muzzle brakes for your reference https://fortismfg.com/slipstreambrake5.56mm-nitride
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Answer provided by: Fortis MFG (5/12/2026)
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Q: Is this for a 5.56 Slipstream ? Part Number: CS-SSMB-BLK Control shield II-nitride

Asked by: John Zinda - 8/29/2025
A: Yes, it is compatible with our entire line of Slipstream muzzle brakes across all calibers.
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Answer provided by: Fortis MFG (8/29/2025)
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Q: This will fit in the .30 cal muzzle brake

Asked by: Nicolas Fields - 4/30/2025
A: This will only fit our Slipstream Brake 300BLK - Black Nitride. Link below.

https://fortismfg.com/slipstreambrake300blk-nitride
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Answer provided by: Fortis MFG (5/1/2025)
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Q: I have an 11/16-24 thread on the end of the barrel. Do you have a control shield for this thread for a 350 legend Caliber?

Asked by: Ed - 11/28/2024
A: No.
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Answer provided by: Fortis MFG (12/2/2024)
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Q: Will this fit over the .308 slip stream break?

Asked by: John Standifer - 11/5/2024
A: Yes!
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Answer provided by: Fortis MFG (11/5/2024)
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Q: will this fit over the red fortis 5.56

Asked by: david a mourino - 6/21/2024
A: No, the Control Shield GEN II is only compatible with our Slipstream muzzle brakes.
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Answer provided by: Fortis MFG (6/21/2024)
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Q: Will this work with the muzzle brake that came bundled with the original control shield? If not, can you make a bundle available?

Asked by: Corey - 3/28/2024
A: No, it is only compatible with our Slipstream muzzle brakes. Bundles will possibly be made available down the line.
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Answer provided by: Fortis MFG (3/29/2024)
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Q: Hello, I'm interested in the new Shield 2 but have a couple of questions. - is it compatible with.308? - I see it mounts on the slipstream muzzle brake - any thoughts on when those (nitride) will be in stock? - how much does the new shield weigh? Thanks!

Asked by: Jimmy - 2/19/2024
A: Yes, it is compatible with our .308 Slipstream muzzle brake. Hoping to have them in stock soon. Best to get on our waiting list. The new shield weighs in at 5.1 oz
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Answer provided by: Fortis MFG (2/19/2024)
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Q: is this capable for a 300 blackout ar15 pistol first off and is this a direct fit or is it a add on to a compensator?

Asked by: boomer - 2/7/2024
A: Yes, but it is only compatible with our Slipstream Muzzle Brake. It utilizes our patented mounting system.
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Answer provided by: Fortis MFG (2/7/2024)
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Q: What is outside diameter and when available in .30 caliber models?

Asked by: Eric - 2/1/2024
A: 1.48"
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Answer provided by: Mike H (5/2/2024)
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Q: Do you have any figures on how much this effects the performance of the slipstream brake?

Asked by: donald jennings - 1/11/2024
A: We do not have any figures, but we know by feel that it greatly reduces the sound and concussion behind the muzzle, while preserving some of the braking and most of the compensation effects. Results would vary with setup and ammo.
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Answer provided by: Fortis MFG (1/16/2024)
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Q: Is this compatible with original control shield QD or would I need a new break as well?

Asked by: Matthew - 12/9/2023
A: The Gen II Control Shield is only compatible with the new Slipstream muzzle brakes. It will not work with the original Control Shield.
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Answer provided by: Fortis MFG (12/11/2023)
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Q: Control shield gen 2 work whit yours other compensators?

Asked by: Rene Franceschini - 11/29/2023
A: Our Control Shield Gen II is only compatible with our Slipstream muzzle brakes.
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Answer provided by: Fortis MFG (11/29/2023)
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Q: What's the diameter?

Asked by: Steve Girardin - 11/7/2023
A: 1.485" OD.
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Answer provided by: Mike H (11/14/2023)
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