Quote Originally Posted by weebster View Post
Both my original mk2 335 (purchased 1980) and the mk1 I had and indeed the current mk2 I have were all fitted with the dial rear sight and leather piston seal.
The sliding rear sight might be the 333 model....as for ptfe seals,from what I know these are after market types, I have one fitted to a mk2 now and imo its a bit more harsh to shoot compared with leather.
I also have a diana seal which I will replace the ptfe with.
They shoot nice at around 9-10ftlbs.
you are correct,the 333 has the sliding elevation on the sight,still a very nice unit.i got the 333 minus the rear sight a while back,found one on line and to my amazement the dovetail was different,apparently they changed part way through production.thanks to "frakor" for that information and as he put it"if you ordered one not knowing you were bound to get the wrong size dovetail"
atb