A friend who has a collection of assault and battle type rifles (such as AK, SKS, FAL, Uzi, Cetme, ARs, etc,) may potentially be relocating to the state of Maryland and is concerned about any restrictions or registration requirements regarding his collection. He also owns semi-auto pistols whose boxes, according to him, are marked "not for sale in Maryland". Is the state of Maryland really that restrictive? I may consider giving him an offer for his collection if he can't take the rifles and pistols. Thanks in advance for any feedback.