Do not trust people that make a living on commissions to have your best interests at heart.
I don't think it's that the people work off commissions or wear a suit and tie. The hard truth is that most people don't really spend enough time taking a look at their own investments. I'm very very far from any kind of an investment guru and year after year, my 401K goes up. Now granted I'm in the generation that is eventually going to have my 401K stolen from me by my own government, but that's beside the point.
The problem is anyone putting their entire retirement plan in someone elses hands. Whether it's social security or a 401K advisor we just can't "fire and forget" so to speak. It's something that should be looked at a minimum of two or three times a year, just to see how it's doing.
If you guys want, you can make investing fun. You know a lot about guns and what's happening in the gun community, so look at those investments. Look at Smith and Wesson (SWHC), Ruger (RGR), etc. The best thing I ever did for my brother was to tell him to buy stock in Ruger back when it was in the $5-6 a share range, now it's over $60.