Maryland Small Arms Range 9311 Old Marlboro Pike, Upper Marlboro, MD20772 Maryland Small Arms Range is located directly off of Old Marlboro Pike and offers law enforcement equipment and supplies…More including guns, ammunition, locks, safes, scopes, metal detectors, tactical gear, mace, pepper spray and uniform accessories. The range closes 30 minutes earlier than the store, and the last shooter is admitted one hour before closing. Wednesday is Couples' Day when your significant other receives half off on range time. For more information regarding discounts, specials and memberships, please call a sales associate. Gift certificates are available for purchase.