Ask the experts, I have their pamphlet but its about 10 years old, I am sure they update it. Get hold of the NRA, if you aren't a member become one. Here is their 2010 article, there may be more up to date ones. Just ask them.
Good intentions will always be pleaded for any assumption of power. The Constitution was made to guard the people against the dangers of good intentions. There are men in all ages who mean to govern will, but they mean to govern. They promise to be good masters, but they mean to be masters.