I've paid like $25 worth of duties, taxes etc. on a calculator from the US before (graphics calculator), however other packages I've received sometimes I don't get charged on.
If it was through Airsoft Park they'll likely declare the packages value as $20 or something and you shouldn't get dinged on anything but if you do it'll be like $10 or something, not much in the grand scheme of things IMO.
ಠ_ಠLess QQ more Pew Pew
READY TO >> RACE