Lantac USA LLC Dragon, Muzzle Brake, 308WIN/762NATO, w/ Dead Air KEYMO Suppressor Mount, DGN762B-DA Black Color, Includes Timing Shim

The Lantac USA Dragon Muzzle Brake for .308 Winchester / 7.62 NATO is a precision-engineered muzzle device built for shooters who demand serious recoil control and shot-to-shot repeatability. Machined from AISI 4140 steel and hardened to 48–52 Rockwell C, then nitrided to military spec (AMS2753D), this brake is engineered to stay flat and consistent shot after shot. The patented Short Energy Pulse system manages recoil impulse in a way that lets follow-up shots land true without the fight—especially valuable when accuracy matters, whether you're running precision semi-auto strings or operating in a tactical environment.

What sets the Dragon apart is its full licensing agreement with Dead Air, which means the integrated Dead Air KEYMO suppressor mount is built right in. This isn't a quick-attach afterthought; it's a factory-integrated system that keeps your suppressor warranty intact and eliminates the need for a separate adapter. If you already run Dead Air Sandman silencers or plan to, this brake mates seamlessly. The timing shim set is included, so you can dial in perfect concentricity for your barrel profile.

Built in the USA on Swiss lathes and serial-numbered for quality control, the Dragon weighs 3.42 oz and threads at 5/8–24 UNEF RH. At 2.760 inches long with a 0.824-inch body diameter, it's substantial enough to do real work without being bulky. This is the kind of muzzle brake that serious .308 shooters choose when they want to stay on target through recoil, not fight their rifle.

Key Features

• Integrated Dead Air KEYMO suppressor mount—factory-licensed compatibility, warranty preserved
• Patented Short Energy Pulse recoil management system for faster follow-up accuracy
• AISI 4140 steel, hardened to 48–52 Rc and nitrided per military spec for durability
• Precision machined on Swiss lathes, serial-numbered for quality control
• Includes timing shim set for proper concentricity
• Made in the USA

Specifications

Frequently Asked Questions

Will this brake work with Dead Air Sandman suppressors?

Yes. The Dragon features an integrated Dead Air KEYMO mount licensed directly from Dead Air, so it's designed to accept the full range of Dead Air Sandman silencers. Your suppressor warranty is not affected by the mount.

What's the thread pitch for a .308 barrel?

This brake is threaded 5/8–24 UNEF RH (right-hand), which is the standard for .308 Winchester / 7.62 NATO rifles.

Does it come with timing shims?

Yes. The shim set is included so you can achieve proper timing and concentricity on your specific barrel profile.

What caliber options does Lantac offer for the Dragon brake?

Lantac manufactures the Dragon in both 5.56x45mm (.223) and 7.62x51mm (.308 / 7.62 NATO) versions. This product is the 7.62 NATO variant.