Lakeline is the company Beretta mentions. Al is a member here.
With regard to the mag lips I would not rough them up, but gently squeeze the top together in a vise very carefully and not a lot.
The lips can also be tweeked in or down just a bit. This helps prevent dropping rounds if a spare mag is carried without a proper holder.
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."