True Precision TP-P365XLB-XT: True is proud to offer its drop-in ready barrel for the Sig Sauer P365XL, designed for the 3.7\" P365XL, Xmacro & Tacops 9mm Models (also available for P365, 3.1). True barrels deliver unmatched accuracy, combining advanced cuts, chamfers, and an improved 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 P365XL upgrade.