u/KK0074

I just purchased this Norinco Mak90 from a family friend whose husband recently passed away. He liked to tinker with stuff and 3D printed this underfold stock attachment. It locks in at the unfolded position and has a bit of vertical movement but is still sturdy enough to shoot. It does not lock in when folded and can fold under and above. My questions are, has anyone ever seen anything like this and do you think the printed plastic will hold up for long? I haven’t been able to find anything similar online and have been searching for someone who might could CNC a steel block for a better fit as I like the look and appreciate the ingenuity.