Ok - the recent landing of Curiosity on Mars...ummm piqued my curiousity. Its a step towards eventually landing and returning humans from Mars...maybe not in my lifetime...maybe not in my descendants lifetime. But its gonna happen. Heck, we could probably do it with the technology we have now, if we were prepared for a 5 yr 'round trip. But does anyone think we would send UNARMED Astronauts to Mars? At best there might be long dead microbes there - but ya never know. Once you push that far against the envelope isn't it prudent to send them with SOME small arms..."just in case"? I mean yeah...getting into a firefight with natives (however doubtful) or beings cruising thru from another spot in the Galaxy (more likely) would probably make the Alamo look like a picnic. But wouldn't that eventuality be thought of? I know the Martian atmosphere is kinda thin on oxygen but doesn't enough exist at least for chemical based firearms ignition/firing? Its pretty dusty so I think I'd like an AK vs an M-16. Any thoughts? Try and keep it to LIKELY weapons, not plasma bolt Hollywood fantasy nonsense.