I'm also experimenting with modifying some M&P mags and CZ mags to employ within the carbine. You have to Reduce the notch while in the entrance on the mag so it's going to lock in. I don't possess any Glocks. Should you had a large pre-existing retailer of magazines, It https://finnkmkge.blue-blogs.com/39261419/5-simple-techniques-for-ruger-sr45-for-sale