The tm mk23 is a nbb but shoots damn accurate and when you slap on the surpessor its damn quiet too, it is plastic but i hadnt had an issue with mine. I've heard mixed reviews about WE pistols, but in general I've heard noting but bad things about their dragons, the only thing i may use one for is parts to spiffy up a TM hicapa.
But i digress.
We can talk on and on about your gun choices. In the end it seems you want to buy a sniper rifle and a dragon.
Go ahead buy them but dont come crying when they arent the guns for you or oneof them breaks....
"You know what the chain of command is? It's the chain I go get and beat you with 'til ya understand who's in ruttin' command here."