Sig Sauer competition parts for P320, P226, P229, and P210 platforms include triggers, barrels, grips, magwells, and internal components tuned for USPSA Production, Carry Optics, and Limited divisions. The P320's modular chassis architecture makes it especially build-friendly—FCU swaps, X-series grip modules, and aftermarket triggers all work within the existing serialized fire control unit without additional gunsmithing. Fast same-day shipping on most orders at Shooters Connection.