This Beautiful Custom Sig Sauer Full Size P320 started with a Sig Sauer Custom Shop FCU with flat faced trigger. We wrapped it in a Wilson Combat grip module. On top of the more comfortable and ergonomic grip module this P320 has a Grey Ghost Precision match grade barrel and Sig Pro Cut stainless steel slide. Topping off this beautiful custom handgun are Sig Sauer night sights for better visibility at all hours of the day and night and a Romeo Pro Red Dot, with auto off and shake awake adjustable 6 MOA dot. Includes RMR cover plate, 3 Genuine Sig Sauer 17 round Magazines, a Sig Sauer Hard Case a free 300 Arms tee shirt. The custom Sig P320 you wanted to build is waiting...go ahead, squeeze the trigger.