easy - could i trouble you to measure the OAL from the tip of the barrel to the back of the (folded) stock where the bolt goes please? (not to the mag extension).
trying to figure out what the min length barrel you can use with these is, and how much shorter it would be folded than a short LOP stock/12.5 barrel.
No trouble at all. I'm happy to do it.
Following the bore axis red line in the diagram below ...
... my 18" with the top folder measures exactly 28 3/8". That's to the tip of the bottom back of the pistol grip. It extends 1/4" more from where the screw fits.
I don't much care for barrels shorter than 14", so 14" barrels are my shortest and I have one with a Remington Youth Stock installed which measures 33 1/4" from butt to tip of the barrel.
A 14" barrel with the top folder is too short for non-restricted. It measures 24 1/8". However, I believe that if you manufacture an extension long enough to make up for the OAL difference, you'd be in business. Of course, you could add length to the rear too. Length needs not necessarily be added to the barrel.





















































