If it is a bolt action, it is not banned.
From the Maryland.gov website:
1) Is this weapon semi-automatic? If not, it is not banned and you do not need to continue.
2) If this is a rifle, is it centerfire? If not, then it is not banned and you do not need to continue.
3) Is this weapon considered to be a copy of a banned weapon? If so, then it is banned and may not be purchased, sold, or transferred.
4) If this is a semi-automatic centerfire rifle that can accept a detachable magazine, does it have any two of the following: a folding stock; a grenade launcher or flare launcher; or a flash suppressor; If so, then it is banned and may not be purchased, sold, or transferred.
5) If this is a rifle, does it have a fixed magazine that holds more than 10 rounds? If so, then it is banned and may not be purchased, sold, or transferred.
6) If this is a rifle, what is the overall length of the weapon? If the stock is fully extended and there are no removable additions to the barrel, is the weapon less than 29 inches? If so, then it is banned and may not be purchased, sold, or transferred.
7) If this is a semi-automatic shotgun, does the weapon have a revolving cylinder? If so, then it is banned and may not be purchased, sold, or transferred.
8) If this is a semi-automatic shotgun, does the weapon have a folding stock? If so, then it is banned and may not be purchased, sold, or transferred. ?