The Palmetto State Armory PAX9 uses readlily available Glock mags, 50 round drums ,33 round stick mags or G17 or G19 mags. This one comes with one Korean 50 round drum mag and one Glock 33 rounder in matching camo. It also comes with one ETS smoke 32 round mag. It is equiped with a SB tactical pistol brace ,this is not an SBR no tax stamp required. The optic sight in the pictures is not included. You can mount your scope or red dot. Plain fun to shoot and 9mm is cheap. Free transfer at my shop.