If you do it right then what's the point of getting a tinted gun?
First, you should transport your guns in a case, in a bag (put your rifle in a case and put that case in a hockey or duffel bag or something). Make it seem like you play paintball and aren't a "trigger-happy-gun-nut-wacko".
Remember subterfuge is the key here, a paintball mask and a paintball jersey will work wonders. Once you get to the field take off that neon yellow/green shit and get in your BDU's and other gear.
Finally, it's not illegal to own black rifles just illegal to import them (CBSA decision) a black rifle once in-country is 100% legal.
ಠ_ಠLess QQ more Pew Pew
READY TO >> RACE