Sorry lads, We don't ship this to the 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.
 
 
**Note: If your collar can only lock on like 3-6 clicks. Please punch/ tap the suppressor into the flash hider from the muzzle end. It require a little break-in between the location mechanism of the suppressor with the flash hider. It should be able to lock on 10-15 clicks normally.
 
**DO NOT use O-ring to adjust the align the profile of flash hider. Using 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. *
 
* Flash hider FH556-216A not included.
 
All products sold by HAO are intended for Airsoft use only. Other uses are prohibited. Any modification including painting, marking or wiping the cover/instruction stickers is prohibited, and may be a violation of law. Customers assume full legal liability for any modifications they perform, absolving HAO of any responsibility.
 
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