The P320 also has ambidextrous slide catch lever and a reversible magazine release for full ambidextrous operation.The P320 M17 model features a stainless steel frame and slide, and a M1913 Picatinny rail. This model has a coyote PVD frame and slide, manual safety, carry length coyote grip module, SigLite night sights, and anti-corrosion internal coatings. It comes with 2- 21 ROUND MAGS AND 1 – 17 ROUND MAG. 3 MAGS TOTAL!