[XTRM1NATR]

Now I know that the Russians now use the 5.5mm pin size on their polymer folding stocks, but did they ever use the 4.5mm pin size on their smooth-butt, non rolled edge triangle folder (Izmash) stocks? The reason why I ask is because I had a non rolled edge, smooth butt stock that came with an ORF kit that has the 4.5mm pin. Is the 4.5mm pin correct for these stocks?

Also, this buttsotck had no proof marks that I could find.

 

[j-rod]

Early russian side-folders used the 4.5mm pin. They changed to the 5.5mm pin w/the 74M and Century series.

 

[XTRM1NATR]

Gotcha!

Thanks for the clear up!

 

[jithaca]

Looks like a Russian Stock and a Bulgarian trunnion.

 

[caliri47]

p

Does any one remember the link for mod's on the pin size of a bulgarian triangle stock & a russian trunion ?