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LANTAC Dragon Muzzle Brake with Dead Air KEYMO suppressor mounts
As Low As $115.99 Save Up to 23%
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Most Helpful Positive Review Great product
I bought this to fit my dead air sandman s and it works great! The machining and finish were extremely nice. The brake does a really good job controlling the recoil as well. I would definitely recommend this product.
Most Helpful Negative Review Typical Lantac Disappointment
Bought this to mount a keymo suppressor on. I've dealt with Lantac before....never been super impressed with their products. Decided to give this a shot.....remembered immediately why I don't like Lantac. Supposedly "nitrided" but looks like phosphate. Either its not nitrided or they dont know h...
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Very effective at taming the recoil of my AR 10

by Johnnyonthespot, Verified Owner from TX, United States Written on March 1, 2026
I run this on my 18 in ar 10. Combined with a rifle sleep gas system and a giessele buffer system the gun runs fast and flat. The Lantac dragon is by far the most effective break on the market. 10/10
Would recommend: Yes
Was it helpful to you? Yes | No

great muzzle brake

by crash, Verified Owner from OK, United States Written on January 10, 2026
Great with bringing down muzzle rise. This is usually the first upgrade I do to all of my rifles. I eventually will get a suppressor to go with it.
Pros:
  • Helps with recoil
Cons:
  • None
Would recommend: Yes
Was it helpful to you? Yes | No

Lantac Dragon's on 5 of my rifles

by Regus, Verified Owner from FL, United States Written on October 15, 2024
Either Lantac or Blackout Hybrid on all my rifles. Both are great as adapters and both perform great as a brake. Good quality, easy to install with supplied shims.
Pros:
  • good all round
Cons:
  • None
Best Used for:
  • keymo adapter to swap cans
Would recommend: Yes
Was it helpful to you? Yes | No

Wrong shims sent with order

by Demmons, Verified Owner from OH, United States Written on November 16, 2023
Muzzle device itself is a perfect 10/10, as per the usual with Lantac. Best QD muzzle devices on the market. But for whatever reason mine came with some razer thin (in diameter) shims that looked like a wish.com black Friday special. They were not the normal Lantac shims. They were packaged separately and only contained 5 shims of 3 different sizes. The middle sized shim tore in half before even hitting 25ftlbs of torque. I contacted Lantac directly and they sent out a set of the correct shims. Not sure why these things were sent with my brake or why the normal included shims were removed before OP sent them out.
Pros:
  • Solid QD lock up with suppressor
  • Great recoil and muzzle rise mitigation.
Cons:
  • Whatever Optics Planet is doing with merchandise before shipping them to customers.
Best Used for:
  • Muzzle break
  • QD suppressor mount
Would recommend: Yes
Was it helpful to you? Yes | No

lantac dragon

by John, from MD, United States Written on June 21, 2023
fits and finish is very good works as it should keymo adapter fits on and off as it should and it looks good will purchase again and will buy from optic planet there pricing is good and shipping was quick
Would recommend: Yes
Was it helpful to you? Yes | No

Nice Quick Mount

by Vandar, Verified Owner from NC, United States Written on March 20, 2022
I have purchased three of these of my Dead Air Sandman S. One for the Tavor x95, my original (made in new Hampshire) Bushmaster AR-15 and my Sig Sauer 566 SWAT. This will work with all Dead Air Sandman suppressors with the KEYNO suppressor quick mounts
Pros:
  • Quick connect
Cons:
  • None
Best Used for:
  • Sandman suppressors
Would recommend: Yes
1 of 1 found the following review helpful.
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What you’d expect from Lantac!

by Seth, Verified Owner from OH, United States Written on March 10, 2021
Lantac is one of the better names for AR parts out there. This was no different. The dragon makes a huge difference when shooting. Much less felt recoil. This one here allowed me to mount my Sandman S to it in a matter of seconds! Great product and I’d recommend it!
Would recommend: Yes
2 of 2 found the following review helpful.
Was it helpful to you? Yes | No
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Last updated 2025-11-12 UTC.