I've got just over 600 rounds through my PM9, and I love it.
(Fastbolt,
Don't give up on the PM9.
I've never found a light 2" snub that I could shoot accurately, but then I have never spent much time shooting them either. Since many people say they can be accurate with these guns, I'm assuming the problem is with me, and that increased practice would improve my accuracy.
I suspect that time spent shooting the PM9 will show increased accuracy.
Besides, since you are LE, I'm guessing you have a
lot of experience with snub guns. I've always liked them myself. I grew up on old moves, watching awesome shots being made by coppers, shooting from the hip.
)
I don't know the serial number range of my gun, I'll have to check, and I'll look for similar marks.
I don't think they are cracks. I think they are a "raised" area, caused by the steel inserts underneath the polymer.
I expect a gun in this price range to be relatively free of defects, and my gun is. I don't get excited about a small mark in the polymer, as long as it doesn't get worse, or affect the reliability of the gun.
I've had several Glocks, and if I had tried, I could have found a small imperfection in each one.
The more I shoot and carry my PM9, the more I like it.