recently purchased a sigma and went to do the trigger mod.when i broke down the sear block ,there was only the inner spring,so i got thinking maybe the trigger mod had already been done(didnt feel like it though) and also i could not get the pins (one long and one short) out of the block to polish up the surfaces.looked like the pins were pressed in and uncapable of being removed,so i left it alone.is there an aftermarket sear block assy that is made like that.probably.i do have the model 9v so maybe on that model they are unremovable(although the part #s are the same at numrich)well all i could really do was remove the pigtail spring and put it back together.took it to the range,one shotand the striker did not reset. although it chambered a round the stiker was not reset.manually pulling the slide back would reset it,though.well,for 3more shots, then nothing would reset it.pulled it apart and the striker is broke.is that just a wierd coincidence,or did the pigtail removal have anything to do with it.any advice is appreciated. i aint giving up on this pistol cuz i like everything about it other than the trigger,which i can get used to.thanks