"...Clinton banned the import of..." George Bush started in in 1989. Clinton just expanded it to include Uzi, FN/FAL, HK-91, HK-93, the Sig-550, Norinco AK's, M305's and Polytech M-14s. He didn't shut out Norinco shotguns or hand guns as I recall. There being no U.S. Norinco distributor did the rest.
"...Still imported into Canada..." Yep. $399Cdn. for a Government Model clone with or without adjustable sights . $379 for a Commander. Used a lot for building race guns and entry level shooting game pistols. No exports.
"...blue frame with Parkerized slide..." Don't believe that's original. Nothing like it is currently available if it was.
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