After over 50 years and over 10 million and counting-and the only pump action to be declared MilSpec-the Mossberg 500 has proven to be one of the most versatile and reliable shotgun platforms available, offering a model to fit every application, and every user from households, to law agencies, to military worldwide. This 514 Kit includes a 14″ Heavy Wall barrel with bead sight, cylinder bore, and Parkerized finish. Compatible with 12 Gauge Mossberg 500.