Mine is a K-Var. I got it in town at J&G Sales. It has an external block, folds really easily and locks along the left side of the gun. It's not US made if you are relying on that for compliance. I'm having a hard time finding a recoil pad small enough to fit it but, otherwise it's a quality piece. It was less than $150 and if you give J&G Sales a call they can probably get one in the mail to you ASAP. I have my Hungarian AK and my S12 set the same with identical folding stocks and Tapco pistol grips. One of these days I'll get identical forends to have a matching pair.