Dented cases and what I call the primer smear are pretty normal.
Reaching the mag release button is the same for me, I've been meaning to scallop mine as well.
I'll probably leave the original grips and get another set or make another set and thin them down a bit and make the release easier to reach.
My factory grips matched up perfect in the back, some have reported an uneven gap in the back, I've fixed a few of those.
I'll probably be offering up my K40 one of these days, the muzzle flip is just too much for me. It's accurate as heck but too much flip. I thought about putting a K9 top end on it but not sure it's worth is since I have a K9, of course my son might claim it and then I wouldn't...........................sigh.
In Memory of Paul "Dietrich" Stines.
Dad: Say something nice to your cousin Shirley
Dietrich: For a fat girl you sure don't sweat much.
Cue sound of Head slap.
RIP Muggsy & TMan
"If you are a warrior legally authorized to carry a weapon and you step outside without that weapon, then you become a sheep, pretending that JOCKO will not come today."