Thanks,
You were right:
Quoted from Makarov.com
FEG AP9
Imported by Century International Arms of St. Albans, VT, the AP9 is a commercial .380 ACP version of the PA-63 service pistol, with the same white alloy frame and two-tone appearance.
In general, the AP9 shares the same strength and weaknesses of the Walther PP/PPK pistols. Its most obvious drawback is a very heavy double-action trigger pull. The magazine release is located just below the slide at the front of the grip, rather than behind the trigger guard. As a result, the empty magazine protrudes 1/8 of an inch from the bottom of the grip instead of smoothly ejecting.
Despite a very heavy double-action first shot, the AP9 test-fired with surprising accuracy. One offhand group, using Federal 95-grain FMJ, placed five shots in a tiny 1.4-inch pattern; and a 50-foot group placed within an incredibly small 1.7-inch pattern. That was, however, after a first shot, fired double-action, had landed some 2 1/2 inches away from the point of aim. The four remaining shots, all single action, were fired at the first bullet hole.
The AP9 is a good .380-caliber pistol that can be purchased for much less than any Walther on the market.
End
I still however wonder why this pistol is stamped with both model numbers
fritzhund