True Precision Sig Duty 9mm Luger 3.10" Threaded Satin Stainless Drop-In Barrel

The True Precision Sig Duty threaded drop-in barrel is a precision aftermarket upgrade for the SIG Sauer P365 family. Designed and machined specifically for the compact 3.10" slide length, it is a direct-fit replacement for the factory barrel on the standard P365, the P365X (3.1" variant), and the P365 SAS, giving shooters a rugged, suppressor-ready platform right out of the box.

Machined from stainless steel and finished in a low-glare satin stainless, this Duty-series barrel carries True Precision's reputation for tight tolerances and reliable feeding. The 1:10" RH twist rate is optimized for the most popular defensive and range 9mm Luger bullet weights, and the barrel is threaded at the muzzle for straightforward mounting of a compensator or sound suppressor.

Because it is a drop-in design, installation requires no gunsmithing — the barrel slips into the factory slide and locks up using the existing P365 locking geometry. The barrel ships with no sights, allowing the shooter to continue using the factory P365 sight setup or to run a dedicated optics-height co-witness configuration. Whether you are building a deep-conceal EDC, a duty-grade P365, or a suppressed range pistol, this True Precision barrel delivers the accuracy, reliability, and modularity the platform is known for.