Please read I am NOT trying to break the law but I am curious on if the following transaction is possible.

In MA there are not alot of H&K dealers. I have found numerous dealers thru various websites that have models I am interested in. The issue is they have 13/15rd mags. I am limited to a 10rd mag in MA.

Can I have the dealer pull the mags, swap them out for some 10rd ones (even trade) and then have them sell me the gun thru a MA FFL dealer?

Just curious.

Thanks