Also, last time I checked, MD had magazine capacity restrictions in effect. Possession of a magazine with greater than 10 round capacity, whether loaded or not, is illegal. Thats true even if you are first cousin to the Governor and actually can get a MD permit, you still cant carry more than 10 round capacity. If its a 15 round mag, but you only have 10 rounds in it, it's still a no-go.
That's another confusing one I've been trying to figure out. EVERYTHING I've ever heard was that it was a 10 round limit. Yet EVERY law I find specifically states 20... MD 4-305(b)
http://law.justia.com/codes/maryland/2005/gcr/4-305.html
So I dunno if they changed it or if what I've always heard was misconstrued...
And by the way... I'll see you on the 19th!