I have been designated as our teem armorer. About a year and a half ago we obtained(by trading in our old AR's) 4 M-4's, 2 commandos and we already had 2 MP40's. We also carry G22's. I am already a Glock armorer. I am looking for maintenance schedules, tips etc...for the M-4/Commando weapons. I will hopefully be going to a Colt armorer course soon. Just need to get a program put together until then.