Magnum Research is the importer of the Israeli made Desert Eagles and the joint Tanfoglio/IMI (Israeli Military Industries) pistols. The latter have been sold under different names such as Jericho, Baby Eagle and UZI Baby Eagle. They're basically Tanfoglio derivatives of the CZ75, with the exception that they're finished in Israel and have a full length frame and slide unlike the CZ75/Witness pistols whose frames taper before the muzzle.
Israel Arms imports the 1911 line of pistols, and they used to import the Kareen (a clone of the HiPower). I don't know much about the BULs, sorry. I'm positive that IMI doesn't make them. It's another company not related to IMI.
If you find anything out about the M-2000 1911 A-1 0.45 ACP please post it. I'm looking for a stock 1911 and this one looks good.
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"Get yourself a Lorcin and lose that nickel plated sissy pistol."