Chinese M21 vs. Yugo - Can they swap stocks?

[Phosphorus32]

Agree with RM. The bayonet groove looks sanded and the black looks like paint, from what I can tell in the highly pixelated images  Nothing I can see that would indicate it’s a laminate stock.

[teflon6string]

As requested, I tried to upload pics of my black bolt, black bolt carrier and black bayonet yesterday, but no joy. Oddly, pics have not been a problem here before. Was that maybe an issue on this site yesterday? Will try again later today, maybe different sizes or .png/.jpg format.

[running-man]

Not to my knowledge.  For whatever reason, the site doesn't work with the words "imgbb. com", so if the picture links you're trying to upload have that link in there as opposed to ibb.co it will kick you out from the post.

[teflon6string]

Hmmm... these are just regular jpg files like xxx.jpg that drug into the drop box like my other pics before.

[running-man]

No idea, should work just fine unless the photos themselves have issues...