Depends on the gun. For most common rifle, shotgun, and handguns, MD does not have a registration requirement. Assualt weapons are required to be registered. Link below to MD firearm laws, and you can check with the MD State Police.
That depends entirely on state and local laws. There is no answer good throughout the country.
Contact your local police for the latest information.
The California Department of Justice web site has all the information you are seeking.
If the ownership of the gun is changing, it must be sent to a firearms dealer in SC. If the ownership is not changing (owner is moving to SC) no action is needed. Neither state requires registration of guns.
There does appear to be one. It is an INVERSE correlation. As the rate of gun ownership INCREASES, the rate of violent crime DECREASES.
Since you posted the question on the internet, do an internet search on Maryland gun laws.
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http://www.nraila.org/statelawpdfs/MDSL.pdf
There is no set age limit for cap gun ownership.
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