I have the TM M19 gas powered revolver (6 inch barrel version) and I have to say that it is fun to shoot but a bugger to reload. Each chamber holds four rounds so you have 24 shots and the gas chamber holds enough for around 36 shots (green gas) so you will need a way of refilling in game if you want to run this in longer games.
I carry mine as a backup weapon just in CQB as it lacks the punch to really be used in woodland as it only hits 250 fps on a good day. That said it is obviously site legal whereas some sites don't allow the ~400fps CO2 powered revolvers.
Don't get me wrong, it's a brilliant weapon but for the price tag you can get a TM MK23 which is a lot more practical... but you're obviously like me and overlooked that fact because revolvers are just awesome!
