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The True Precision TPP365XLBXBL is a drop-in replacement barrel built to squeeze more accuracy and reliability out of your Sig P365XL. It's machined in the USA from certified 416R match-grade stainless billet, then finished in black nitride using the same hardening process found in high-speed cutting tools. That coating shrugs off wear and holds its dark, clean look through years of carry and range time. At 3.70 inches, it's a direct swap for the factory tube with no gunsmithing gymnastics required.
The real story here is the geometry. True Precision uses a proprietary broach-cut rifling pattern, 6-groove with a 1:10 twist, engineered to tighten your groups while safely handling every 9mm load you'd want to run, including cast lead. The widened feed ramp is the standout feature owners rave about. It's noticeably fuller than the OEM ramp, which translates to more dependable feeding with hollow-point defensive rounds and heavier duty-style ammo. An 11-degree target crown rounds things out for consistent, repeatable muzzle performance. Folks who've run it report flawless cycling across 124 to 147 grain loads with no failures to feed or eject.
This barrel is designed for the 3.7-inch P365XL, P365X-Macro (non-ported slide), and XMACRO TACOPS 9mm models. It will not fit the 3.1-inch P365, SAS, or the ported Macro Comp slide, so double-check your slide length before ordering. Installation is a genuine drop-in, though True Precision recommends a certified gunsmith handle it and suggests a 100-round break-in with ball ammo before switching to your carry load. Coated barrels sometimes benefit from a light feed-ramp polish out of the box.
This is the non-threaded version, so if you're not chasing a suppressor or compensator setup, you get a clean muzzle profile and a straightforward upgrade. It's backed by True Precision's limited lifetime warranty, which speaks to the confidence behind the machining.
It fits the standard P365X-Macro that uses the non-ported slide and a 3.7-inch barrel, along with the P365XL and XMACRO TACOPS. It does not fit the Macro Comp with the ported slide, which runs a shorter 3.1-inch barrel. Measure your slide length or check your model before ordering to be sure.
No, this is the non-threaded version with a clean muzzle profile. If you're planning to run a suppressor or compensator, you'll want True Precision's threaded 1/2×28 model instead. For everyone else looking purely for an accuracy and feeding upgrade, the non-threaded barrel keeps things simple.
It's a true drop-in design, so it's straightforward for anyone comfortable field-stripping their P365XL. True Precision does recommend having a certified gunsmith handle the install and suggests a 100-round break-in with ball ammo before moving to your defensive load. A light polish of the feed ramp out of the box can help with coated barrels.
That's one of the main reasons people pick this barrel up. The feed ramp is fuller than the factory Sig ramp, which smooths out feeding of hollow-point defensive rounds and heavier duty ammo. Owners consistently report reliable cycling across a wide range of bullet weights and profiles.
| UPC | 719104537861 |
|---|---|
| Manufacturer | |
| Manufacturer Part Number | TPP365XLBXBL |
| Caliber/Gauge | 9mm |
| Length | 3.70" |
| Model | |
| Sights | No |
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