I have one JMAC folding stocks left, a 5.5 folder i.e. KP9. Was mounted on a safe queen and never shot. Pretty immaculate. I have .5 cheek riser added as well. The only flaw is on the 5.5 folder adapter. It has a little anodizing rubbed off in a very small area of the adapter because my KP9 receiver was a little warped in the back from one of the rivets. All around great folder. This is an ALL machined aluminum model. Super minimal and lightweight. $125 for the 5.5 combo. Text for more info or pics. Mike 4o87479o43