Awesome, but not perfect. - DoubleStar Push Button Folding Stock Mechanism w/o Boss

Great product almost all the way around. Seems very robust. Locks in both the open and closed positions, requiring the button to be pressed in both manners. My only gripe is that there is a little smidge of play in the locked open position. When you shoulder your stock, there is minimal movement to the left and right from the lock up mechanism. No movement vertically, but if you want an ACE style stock that is devoid of movement, just install that directly and skip the ability to fold. When it comes to range and training class use, the adapter works great. If you're really trying to do some surgical precision work at longer ranges, the movement in the stock will not help you in that department. I bought the 8.5 inch ACE skeleton stock to attach to my Yugo M70, which I would never hope effective out to those extended ranges where stock movement would be impacted anyway, but it's something to not if you're trying to mount this stock option on a platform more suited for long range accuracy. All in all, I like it. I know it wouldn't break if I had to mortar the gun during malfunction clearings like I had to worry about with my Zhukov stock, or if you had to remove your enemy's teeth in an up close and personal encounter. I believe it can take some abuse, but only more time will tell. After a few classes, I'll come back and report my finding. I also use red loctite on basically everything, so hopefully nothing every backs out or gets loose.