Looks pretty good. I would put the definition of consealed further up (seems to be one of the last conceal items you mention). Also, we all know drinking and guns are bad but in MT there are teeth, http://data.opi.mt.gov/bills/mca/45/8/45-8-327.htm
I am also thinking you should call out the FEDERAL under 18 carry statue for 14 to 18. One of the main things is they are required to have a written note by a parent in there immediate possession. I call out the statue in another thread.
BTW, happy new year.