OK, I'm pulling everything out I got.
I have Leia Poncho, AT-ST Driver & the B-Wing Pilot Carded.
Leia Poncho - Blue Gun. POTJ Card.
B-Wing Pilot - Blue Gun. POTJ Card.
AT-ST Driver - Black Gun. ROTJ Card.
I also have 2 loose Black guns. 1 real & 1 repro. The real one has the circle on the handle & the barrel & the repro does not.
The carded figures do have a circle on the handles & the barrels.
The image below from the Armory Of The Jawas Repro Photo Guide, show both areas marked in red. 2 spots for the repro that I can see & that I do have on mine.
I do not have a Grey Pistol to compare like the real one below.