Does anyone have an idea whether the new Colt M4 tactical rimfire (https://www.rrarms.com/catalog.php?prod=GM16) will be legal for sale in MD? I am tempted by the GSG-5, but my son would prefer to wait for the Colt/UMAREX M16 lookalike. I believe it will have a 25 round mag, not allowed in MD. Any thoughts as to whether they will have a lower capacity mag for sale in MD or CA?