I haven't got the Mp5 but have the TM high-cycle P90 and M4. TM quality and 25rps! I think the drum mag looks bit gash, but you can use the TM mp5k hi-cap instead. If you want a BB hose attached to tm magic hopup then go for it
Just don't upgrade the spring or you'll loose RPS. just incase you didn't know and whoever you buy it from offers this upgrade as their TM default. i was dissapointed in zero one for not understanding why i didn't want the spring when buying a 'high-cycle' gun...