LanTac™-USA LLC is a Nevada company our flagship first product to revolutionize the market was the LANTAC™ Dragon Muzzle Brake DGN556B for AR15, M16 & M4 Rifles. We manufacture to the highest quality standards and featuring a patent pending design, the LANTAC™ DGN556B Muzzle Brake offers improved recoil management and muzzle rise over competitors products. Its unique Short Energy Pulse system reduces length of recoil so that repeating shot energy cannot overlap and knock the shooter off target. Full auto fire is possible with massively reduced recoil and muzzle climb, meaning that all shots fall on target. Ultra Fast Attenuation of muzzle blast gasses means that Flash Signature is also reduced. We have since introduced : LANTAC™ Dragon Muzzle Brake DGN762B for AR10, AR 308 Style Rifles. LANTAC™ GB750S Ultra Low Profile Gas Block. ITAR Notice: This product is manufactured in the USA by LANTAC™ USA LLC for sale within the USA only. Export of the commodities described herein is strictly prohibited without a valid export license issued by the U.S. Department of State, Office of Defense Trade Controls, prescribed in the International Traffic in Arms Regulation (ITAR), Title 22, Code of Federal Regulations, Parts 120-130.