I have never seen this mentioned here but heads up........
I was finishing up my polish underfolder build the other day. Prior to fitting the complicated stock assembly I was looking at the rifle and wondering about the overall length with the stock folded. Since the stock was going to be "fixed" open until september, I measured it before installing. Using the sight line between the front and rear sight as the horizontal line and then extending vertical lines front and rear at 90 degrees, I measured almost EXACTLY 26 inches end to end with the welded slant comp. If I didn't install the slant or used a muzzle nut, the gun would come in under 26". I had no idea underfolders were this close. I know a lot of people are planning to install underfolding stocks after the sunset and should be careful.
I would be curious if all preban underfolder models (chinese, yugo etc) are this close. I can't imagine the polish kits being unique but you never know.