Gut feeling is its the same master and tooling being used for this "polystone" version. And to clear up any future discrepancies, "polystone" is a filled resin. It picks up no other details than any other resin or plastic, its just inexpensive and the stone filler adds weight. Being redundant, this will be a great display piece but not something to be handled or costumed with. Its not a toy and isnt made to be one. Its made to sit on a shelf and look nice. For the money it cant be beat for a finished display ready item.
shdl,
There are one piece static resin castings out there called the "Phil" casting named after the person that offered them from the original mold. Those are as close to the Firefly version you will ever get as the original live fire hero guns were both permanently modified for the film. The original Firefly guns no longer exist in their original form. The Phil castings have been skyrocketing in price as of late. That ship for them sailed long ago.
Thats where both the Model 47 and the Model 47a come into play. They are as close to the original Firefly version anyone will ever get minus the aforementioned static resin Phil casts. Both were offered in very limited runs, were all metal, working trigger, wood grips... The Captain himself owns one. QMX had the chance to offer the 47a but for whatever reason thats anyones guess, chose not to. It was a completed, in hand, full metal, working trigger, accurate as can be replica ready to go into production.
There are a few other kits out there on ebay and the SidKit which is potmetal. Ive never handled a Sidkit so I cant really comment on its accuracy but the ebay kits are not very accurate.
For international shipping on the QMX polystone Mal replica, you need to ask QMX directly. Nobody here can give you a quote, only the seller. Its a great display piece.