beretta maybe, but glock... LOL now's that's funny. One the Chinese don't have the technology or formula to glock's proprietary polymer frame, and 2 they don't know how to do ferritic nitrocarburizing (tennifer metal finish) so if they did copy one, it would have a metal frame that would force them redesign a lot of things on the frame. And to be able to sell it here for $350 the distributor would want them made at $20 a piece, doesn't seem like a deal Norinco would jump on.
Even if the Norinco made glock copies, the new glocks can be had for $500 for military & LE, etc, etc, and used glocks are getting cheap as well. So for $150 difference i'm sure nobody would buy a Norinco glock even at $350, maybe $100 LOL.