My HD lineup consists of an 870 12 gauge and a Glock 23. Also have a Mossberg 500 20 gauge that the wife and son would grab. The wife also has her S&W model 66 as her handgun of choice.

The AR is not in this line up. Not because I don't think it could be used, just that I do not have the proper ammo for it, and the entire family is not proficient with it. We keep the two shotguns with empty chamber and trigger pulled, so both my wife and son know they just have to pull back on the forearm to put a round in chamber. Keep them this way so that they can grab either shotgun and the manual of arms is the same. No safety or slide release to mess with.