I need to futz with the assault rifffles! I am going out to the shop and fire up the stationary belt sander and fit all the Yugoslavian, and Croatian BHO mags. The rear lug is too thick on all of the Croats, and a few of the Yugos need tweaking. WTF it's in the 60's out there and I have been putting it off. Then come back inside and remove the buffer tube from the AR and add the MagPul abidextrious single point mount. If the Chinese tool doesn't tear itself up! Too much time spent online!