Not quite. The A-75 does not have a safety, just a de-cocker, the RAP does which also de-cocks. Otherwise, they are identical.
The 9mm mag and the .40SW mag of the A-75 are the same (says 9mm on one side, .40SW on the other). They should fit the RAP. The A-75, however, is very heavy for its size as it is all steel. There were alloy framed versions but, IIRC from others who have them, they were still a bit heavy. Not sure what the RAP frame is made of.