Recently I’ve read articles about medical marijuana and the possible legalization of recreational use of marijuana. People in possession of a medical marijuana card or who use marijuana are prohibited from possessing firearms or ammunition.
Firearms purchasers are asked, “Are you an unlawful user of, or addicted to, marijuana or any depressant, stimulant, narcotic drug, or any other controlled substance?” They are warned that the use or possession of marijuana remains illegal under federal law regardless of what state laws say. If you answer yes, the dealer cannot sell you a firearm, if you answer no and are an unlawful user, you just committed a crime. The possession of a valid medical marijuana card makes someone an unlawful user under federal law.
Pennsylvania law says that the mere possession of a medical marijuana card will give rise to an inference that you are an unlawful user of or addicted to a controlled substance. Therefore, it is also unlawful for you to apply for, possess or renew a state license to carry a firearm
If a firearms dealer suspects that you are an unlawful user, they cannot sell you a firearm or ammunition. Also you cannot own ammunition or have a license to carry a firearm.
Robert Lee Horst
Source: Berkshire mont