I actually like that stock alot. Good grip and feel, nice length of pull.
The stock portion is kinda hard to the cheek. I ended up using a piece of pipe insulation and a paracord wrap to hold secure. Much better, and brings up your head to a more inline the sights position.
It also might need to have a few shims put in behind the receiver, to take up slack due to the tolerances of the moulding process...
Might as well forget the folder block and keep it a fixed length. This model has a conversion kit to allow the folding of the stock, from the fixed version....The Folder wedge is loose and really moves about when wanting to hold steady. The only thing I didnt like about this stock.
The stock is meant for spike bayonets, bladed ones need to be relieved to fit properly. IF not you'll have a easily accessible point to jab your hand when gaining a grip to the shoulder.
It takes all mags just fine.
I also ended up not putting on the plastic "upper" piece for the gas tube, It was quite the hassle trying to un pin that wood piece with out potentially destroying it...Your mileage may vary..