FASCINATION ABOUT RUGER SHOTGUNS

I am also experimenting with modifying some M&P mags and CZ mags to employ in the carbine. You must Slash the notch within the front of the mag so it can lock in. I do not have any Glocks.I'd use Glock branded Publications instead of the other copies. Some others are offered such as Magpul. You could possibly attempt some and find out on your own.