Too thick for p12 mags. - Pearce Grip Para Ordnance P10 Grip Extension

Baseplates are too thick to permit the magazine to seat properly and for the magazine to catch. They wouldn't work on three different Para-Ordnance P12 factory mags, either with or without the grips installed (tried this because I thought that the rubber Hogue grips might be the issue. They weren't.) It's too bad, I really wanted it to work.