I am also experimenting with modifying some M&P mags and CZ mags to work with during the carbine. You need to Reduce the notch inside the front from the mag so it is going to lock in. I don't possess any Glocks. You'd under no circumstances be capable of tell https://lizardsforsale50088.thechapblog.com/31374162/not-known-factual-statements-about-ruger-p89-for-sale