What Are the Gun Laws in Montana?
Woody's answers are based on published federal and state law. Not legal advice. Consult a licensed attorney for your specific situation.
Montana has some of the most permissive gun laws in the US. No permits required for purchase, carry, or ownership. Constitutional carry is legal statewide.
What This Means for You
Montana's firearm laws are generally builder-friendly with minimal state restrictions beyond federal requirements. You won't need special permits for most builds or transfers. The state preempts most local gun ordinances, so city-specific restrictions are typically invalid.
The Detail
Montana operates under constitutional carry, meaning you can carry concealed or open without a permit if you're legally allowed to possess firearms. The state still issues concealed carry permits for reciprocity with other states, but they're optional for in-state carry. There are no waiting periods, registration requirements, or assault weapon bans at the state level.
For purchases and transfers, Montana follows federal background check requirements for licensed dealers but doesn't require checks for private sales between residents. You can buy, sell, and transfer firearms privately without going through an FFL, though all federal laws still apply regarding prohibited persons and interstate transfers.
The state has strong preemption laws that prevent most local governments from enacting firearms restrictions beyond what state law allows. This means city and county ordinances typically can't restrict carry, ownership, or transfers more than state law does. However, some federal properties and certain buildings may still have restrictions.
Montana also has favorable laws regarding NFA items, with no additional state restrictions beyond federal requirements. Suppressors, short-barreled rifles, and other NFA items are legal with proper federal paperwork. The state even has a firearms freedom act, though this doesn't override federal law in practice.
Build Impact
You can build most firearms without state-level paperwork or permits in Montana, just follow federal laws. Private sales and transfers are straightforward, making it easier to source parts or sell completed builds to other Montana residents.