The slimmed-down PRO magwell enhances grip comfort and minimizes printing while carrying concealed. The OZ9 was designed and created for balance. It's one of the first things you notice when holding this pistol. Balance equates to what every shooter is looking for a more controllable pistol with less felt recoil less muzzle flip and faster more accurate follow-up shots. At the heart of the OZ9 is ZEV Technologies' patented steel receiver. This solid steel frame runs the length of the entire pistol allowing the locking block to be fully integrated. The extended rails in the receiver help provide more than double the surface area of contact to the slide.