LANTAC Dragon® Muzzle Brake DGN556B-DAX – Manufactured to the highest quality standards and featuring a patented design the LANTAC DGN556B-DAX 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. – Shooters can now enjoy advanced weapon control with the ability to mount the Dead Air XENO HUB. – Dragon brakes are precision manufactured on Swiss lathes and machined from AISI4150 steel that is then hardened to 48-52Rc (Rockwell C) and QPQ (Quench Polish Quench) Nitrided to AMS2753D standards for enhanced corrosion resistance and improved lifespan. – The mount design is fully licensed from Dead Air therefore customers suppressor warranty remains unaffected. – Ships with timing shim set. – Users should follow shooting guidance for the XENO HUB as supplied by Dead Air. – Lantac recommends the use of semi-permanent thread locker Rocksett sold separately. – SPECIFICATION: – Caliber: .223 / 5.56mm – Material: AISI4140 Hardened 48-52Rc – Dimensions: L: 2.020 MOUNT DIAM: 0.9960. – Weight: 3.0 oz – Thread: XENO HUB – Serial Numbered for Quality Control – Comes with appropriate timing shim set. – Made in the USA.