So I bought a P9 recently used from a pawn shop. It dates back to 2000-2001 manufacture. I noticed when inserting a mag loaded with snap caps the slide hangs because the slide stop lever gets punched out of alignment. Upon disassembly, I noticed the slide stop lever comes out pretty easily. There does not appear to be a slide stop screw like I see on the internet of other Kahrs. Is this normal, or is mine missing?