Rival Arms RARA20S201C Precision V1 Drop-In Barrel 9mm Luger 4.25" Bronze PVD Finish 416R Stainless Steel Material for S&W M & P (Except for M2.0)

Built from high-quality stainless steel, precision polished and treated with premium coatings, these barrels rival custom work and deliver the best in accuracy and performance, round after round. 6 groove rifling, low-temperature vacuum PVD coating creates a durable barrier against wear and tear even in the harshest environments, BORSLICK Boron Nitride DCD (Dynamic Compound Deposition) inner bore treatment resists heat and carbon buildup and a target crowned muzzle.