based in kent no leaks (at mo) shot counter is zero at mo reset when cleaning. anno wear on barrel tip as seen in pic and some on reg. diff between a 2.0 and a 2.1 is the opp,s intsed of a screw in one its a pops and a angaled elbow on the regvery intrested whats the shot count on it and prob sound silly but whats the diffrents between a 2 and 2.1. is there any leaks on it or damage. where you based mate