Well this is my first post on hk pro and this is my first hk type rifle so forgive my long post.I got my c93 used from a local dealer, looked to be in good shape minus the cheap tan paint the previous owner had used on the furniture and flash suppressor.It was veeeeery dirty so I'm just gonna assume it had been shot a few times but the bolt gap was at .008 and from what I understand that's about "spec" for century no ground bolt nothing out of the ordinary accept it had the cut out for the paddle mad release.Thanks to this site I was able to give it a real once over and make sure it was ok before shot it and it works grate thank god.I realy have fallen for this thing it might replace my gallil as my favorite pkinker.I like doing my own "smithing" and I use that word loosely but thanks to hk pro and you guys this rifle has been nothing but fun to tinker with.I got some plus two rollers that put at .012 bolt gap and some new furniture she's a real beaut.