Shooting a small handgun at a practice range can be tedious with constant reloading and the wear & tear on your hands. Make your practice time more comfortable and enjoyable with our 10 round extended magazines for your Guardian. We recommend using Ball or FMJ ammo with your 10 round extended magazine for reliable feeding. 32 NAA, 25 NAA, and Hollowpoint ammo work fine in our six round magazines, but can cause feeding problems with the extended magazine.