I own a pawnshop, and had one of these come through. Customer did not come back, put out for sale. Good customer of ours picked it up, brought it back same day. Wont feed at least half the time, full mag, last round, no difference. Looks like the barrel has been polished way too much, parts of the ramp have been ground/polished away. Rounds just jam straight into the ramp, sometimes catch at a 45* angle, etc etc.
Thought about buying a barrel, but they are not available as far as I can see, and its obviously been modified.
Any options/opinions?