Sorry lads, We don't ship this to US.
The suppressor is regulated by the NFA regulation in the United States (even though we made the airsoft use version which still could have issues with law enforcement). 
Possession of this product might violate the federal law, please DO NOT attempt to bring this item into the US.
 
All products sold by HAO are intended for Airsoft use and can only work with polymer BBs. Other uses are prohibited. Any modification including painting, marking, or wiping the cover/instruction stickers is prohibited and may be a violation of the law. Customers assume full legal liability for any modifications they perform, absolving HAO of any responsibility.
 
TYPE Hardcore - Heavy simulation: the can weight 530g/18.6oz (GenI: 556g) Full Steel made
TYPE Airsoft- Lightweight: the can weight 231g/8.1 oz Full Alloy made
 
The hardcore version is fully steel made. Front and back end welded for the correct look. We made the weight as close as possible to the real-world version for the most realistic experience and best training purposes. 
 
The airsoft version is made of one piece alloy bar with a screw-on end cap. The locking device is the same as the hardcore version but way lighter, providing an option for a comfortable gaming play experience.
 
 
Compatible with HAO's or RS : 3P/4P/SFCT muzzle brake https://www.haoptwart.com/muzzle-brakes
 
 
**DO NOT use an O-ring to adjust the align the profile of the flash hider. Using an o-ring will cause flash hider tilt and affect the muzzle direction of suppressor.
You should use the washer we provide with the flash hider.
 
 
 
Made in Taiwan
BB type: 6mm 0.2g BBs
Power source: Green Gas 9Kg / 11.1V PTW ,AEG
Power: 90 m/s = 0.81J with 0.2g BBs
J / cm2: 2.835 J/cm2
No primer using function