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Lantac Dragon Muzzle Brake with Dead Air KeyMo Quick Detach Suppressor Mount Thread Stainless Steel Nitride
$128.99
$142.99
(You save
$14.00
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- Firearm Group:
- Suppressor
- Firearm Make Fit:
- Dead Air Armament
- Caliber-Gauge:
- 223 Remington / 5.56 NATO
- Finish-Color:
- Black
The Lantac Dragon muzzle brake with Dead Air KeyMo QD suppressor mount combines precision recoil management with the flexibility of quick-detach suppressor compatibility. Built for shooters who demand both controllability and modularity, the Dragon brake uses a patented Short Energy Pulse system designed to prevent recoil impulses from stacking—a critical advantage when firing rapidly or running a rifle on full auto. By controlling muzzle rise and spreading recoil energy, the Dragon keeps your shot group tight when it matters most, whether you're training at the range, hunting, or running a precision rifle.
Lantac manufactures the Dragon on Swiss lathes from AISI 4140 steel, hardened to 48–52 Rockwell C, then nitrided to AMS 2753D standards. That process—called QPQ (Quench Polish Quench)—yields a finish that resists corrosion far better than plain steel, extending the life of your brake in harsh field conditions. The mount is fully licensed from Dead Air, so attaching any Dead Air Sandman suppressor via the KeyMo interface won't compromise your suppressor warranty. A timing shim set is included, making installation straightforward.
The Dragon comes in two configurations: a 5.56×45mm / .223 version with 1/2-28 UNEF threading, and a 7.62×51mm / .308 variant with 5/8-24 UNEF threading. Both are compact (2.76 inches long) and lightweight, and each is serial-numbered for quality control. If you're building or upgrading a modern rifle and want the recoil control of a quality brake paired with suppressor modularity, the Lantac Dragon delivers the precision engineering and real-world performance that serious shooters expect.
Key Features
- Patented Short Energy Pulse system reduces recoil stacking and muzzle rise
- Dead Air KeyMo QD mount—compatible with the full Sandman suppressor line
- AISI 4140 steel, hardened and nitrided for superior corrosion resistance
- Precision Swiss-lathe manufacturing for tight tolerances
- Serial-numbered for traceability and quality assurance
- Includes timing shim set for proper installation
- Made in the USA
Specifications
| Model (5.56×45mm / .223) | DGN556B-DA |
| Caliber | 5.56×45mm / .223 |
| Thread Pattern | 1/2-28 UNEF R/H |
| Length | 2.760 inches |
| Body Diameter | 0.824 inches |
| Mount Diameter | 1.080 inches |
| Weight | 4 oz |
| Material | AISI 4140 steel, hardened 48–52 Rc, QPQ nitrided to AMS 2753D |
| Model (7.62×51mm / .308) | DGN762B-DA |
| Caliber | 7.62×51mm / .308 |
| Thread Pattern | 5/8-24 UNEF R/H |
| Length | 2.760 inches |
| Body Diameter | 0.824 inches |
| Mount Diameter | 1.080 inches |
| Weight | 3.42 oz |
| Material | AISI 4140 steel, hardened 48–52 Rc, QPQ nitrided to AMS 2753D |
Frequently Asked Questions
What suppressors are compatible with the Lantac Dragon's Dead Air KeyMo mount?
The Dragon's mount is fully licensed from Dead Air and compatible with the Dead Air Sandman suppressor line. Because the mount design is officially licensed, your suppressor warranty remains unaffected when used with this brake.
What caliber do I need?
The Lantac Dragon is available in two calibers: 5.56×45mm / .223 (model DGN556B-DA with 1/2-28 UNEF threading) and 7.62×51mm / .308 (model DGN762B-DA with 5/8-24 UNEF threading). Choose the model that matches your rifle's barrel thread pitch.
Does the brake come with everything I need for installation?
Yes. Each brake includes a timing shim set to help ensure proper alignment and installation on your barrel.
How durable is the nitrided finish?
The Dragon is hardened to 48–52 Rockwell C and then QPQ nitrided to AMS 2753D standards. This process significantly improves corrosion resistance and extends the service life of the brake compared to untreated steel, making it suitable for harsh field conditions.
