True Precision TP-P365B-XBL: True is proud to offer its drop-in ready barrel for the Sig Sauer P365, designed for the 3.1\" P365, SAS, X, Spectre Comp & Xmacro Comp version only 9mm models. True barrels deliver unmatched accuracy, combining advanced cuts, chamfers, and feed ramp designed to outperform OEM standards and to ensure reliable feeding of all types of ammunition designs. The proprietary stainless steel broach cut rifling underscores the commitment to those who demand only the best. The True barrel stands as the definitive Sig P365 upgrade.