I've been following articles about using different mags. With minor adjustments several mags are usable. One on Utube, CheckMate Officers 6 rd mag, shows no mod reqd. AND the 6rd will accept 7 rds. The reason to make the chg was to get flush fit to grip and found it not only did this it provided an extra rd. I've tried find the mag to buy but can't. They are out of stock.