hello guys, I have a couple of questions. Yesterday I took a long good look at the 3 yugo kits I have and noticed some interesting things. I bought 3 kits on the first roll out ( about 7 months ago?) cleaned them quickly inspected them quickly and repacked them to wait until some good yugo recievers were out. I bought 2 undrrfolders and 1 stocked. The first underfolder has no markings on the rear sight block, but is ingraved on the front trunnion "1986 M70AB2 314xxx", the bore still has good rifling and still has a little shine to it. The second underfolder on the rear sight block is engraved "Zastava-Kragujevac Yugoslavia", and on the trunion is engraved"1981 M70AB2 XXXXX" in much larger letters almost looks stamped, Bore has poor rifling dark color and some pitting in th elow spots around the gas hole. OK everything normal so far, now for the stocked. The third ( the stocked) has the "Zastava" stuff engraved on the rear sight block, and the trunnion is blank, nothing , no year, no model, no number. on the right side of the reciever stubb, between the rivits is stamped "B-111xx". this # matches the stamping on the origional buttstock and the # stamped on the top cover. The carrier and bolt have no # on them either. So what gives ? did the yugo's only stamp stunnions on the underfolders and not the stocked? Why did they stamp the reciver and not the trunnion, and why no # on the carrier or bolt? Or did I seem to get a rifle that had the parts replaced along the way??? Now here is a real mindblower , the bore, It has to be the most pitted I've ever seen. All the low spots are pitted, from the muzzle end to the chamber, but the rifling is the most crisp I've seen. Very straight edges, very defined, and no pitting on the upper lands. Like it was shot a couple of times with corrosive ammo, yhen put away and never cleaned. Also very dark no shine at all???? So are all of the stocked versions of the yugos no stamped numbers Or is mine just weird ???????????? please help , thanks Dave