I started out my career with an m-14 that had a selector, progressed through an M1 and a BAR and then the notorious M16. then onto an M60, a 3.5" rocket launcher and an M79 thumper. For a while there was an M109SP 155mm and an M2 50 cal. I no longer have any of them, all I get is a "thank you for your service". I'd give all those thank yous for any one of the above.
Unfortunately, that isn't how it works.