Citation(s) from the GunPolicy.org literature library
Giffords Law Center to Prevent Gun Violence. 2020 ‘Waiting Periods in Maryland.’ Gun Sales. San Francisco, CA: Giffords Law Center to Prevent Gun Violence. 5 December
Waiting Periods in Maryland
In Maryland, any person, whether a licensed dealer or private seller, who sells, rents or otherwise transfers a "regulated firearm" (handgun or assault weapon) may not transfer the firearm until seven days have elapsed following the time a prospective purchaser completes an application to purchase a regulated firearm, and the application is forwarded to the Secretary of the Maryland State Police.
There is no waiting period for the transfer of a rifle or shotgun (except for an assault weapon) in Maryland…
[Editor's note: The Giffords Law Center to Prevent Gun Violence regularly updates its webpages with new data as US gun regulation evolves state by state. For the most up-to-date information on US gun laws, please refer to the Giffords URL below]