I am a USA (Michigan) seller of the following items here on HopUp: - 1x Krytac Full Metal Trident MKII CRB Airsoft AEG Rifle - 1x Matrix High Output Butterfly Type Airsoft NiMH Battery (1600 mAh 9.6v) - 1x Matrix Tactical Systems N3 Pro NiMH Battery Charger - 10x 6mmProShop 140rd Midcap Magazines for M4 M16 Series - 5000x Elite Force Premium Biodegradable 6mm Airsoft BBs 0.25g I have an interested buyer however they live in Canada and I am very knew to selling in general. I have no idea what to do to make sure it is not seized or blocked from being imported. What should I know?