The CBSA does not give you the oppourtunity to install a spring in your gun before they send it to the RCMP for testing. You could do it to a Marui, but it's pretty much impossible to be convincing when the box the gun comes in says 90 m/s. That's why Peter Kang used G&P to start importing that way, removed all manuals, installed heavy springs and let the RCMP test the guns. He brought alot of them in that way too, at least 20 or more made their way to Northern Alberta, where I replaced the springs in many of them with something a little less than the 450fps the came to us with.
Think about how many guns come with a manual or printing on the box stating velocity. How do you pre-upgrade them, and make it reasonable to believe?
Age verifier Northern Alberta
Democracy is two wolves and a sheep discussing what's for dinner.
Freedom is the wolves limping away while the sheep reloads.
Never confuse freedom with democracy.