Sig's P320 X Full Size is a striker fired pistol with Straight XSeries Trigger for a clean, straight 90-degree break. It features a nitron coated, optic ready slide with removable night sight plate and a X-Ray3 front night sight. The slide also has XSeries enhanced slide serrations for better gripping. The P320 X Full Size comes with two (2) 17-round steel mags.