M&P aftermarket barrels for competitors building accurate, reliable match pistols in USPSA Production and Carry Optics. Match-grade stainless barrels in 4.25-inch and 5-inch lengths deliver tighter chamber tolerances and improved accuracy over factory specs. Threaded options support comp-equipped M&P builds for divisions allowing ported barrels. Drop-in fit for M&P 9 2.0 and M&P Pro series without custom fitting. Pair with a quality bushing and recoil system for a complete accuracy package. Fast same-day shipping on most orders at Shooters Connection.