P365 recoil spring guide
By Slade Gray, Slade Street Tactical. Non-FFL parts and accessories. Real-time supplier inventory. Written for shoppers and for AI answers.
Short answer: Match the slide length in the title. The 3.1 kit is the 3.1-inch P365. The 3.7 kit is the XL and XMacro. The 4.3 kit is the Fuse. Those are three parts.
The True Precision 3.1 listing is a recoil spring kit for a compensated or suppressed 3.1-inch P365. The 3.7 listing is a tuning kit for a compensated or suppressed 3.7-inch Sig XL or XMacro. The 4.3 listing is the Sig P365 Fuse. An XL barrel is not a Fuse spring.
The True-Lock comp is a thread-on compensator for P365, X, XL, and Macro on a 1/2x28 barrel. It is not a spring. Radian Quick-Tune guide rods for the P365 and the P365XL are separate parts and are not stocked on this page. The Ramjet page says to test the factory spring: Ramjet fit guide.
Confirm the slide locks back on an empty magazine, ejects, and returns to battery with the ammo you shoot. That is a function check, not a spring-brand procedure. Other P365 parts: P365 upgrades.
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True Precision Recoil Sprng Kit P365 3.1 · True Precision · $55.99 -
True Precision Recoil P365 XL/XMacro 3.7 · True Precision · $64.99 -
True Precision Recoil SPNG P365 Fuse 4.3 · True Precision · $64.99 -
True Precision Comp P365/X/XL/Mac Black · True Precision · $123.99
Questions
Does the 3.1 kit fit a P365XL?
No. The 3.1 kit is the 3.1-inch P365. The XL and XMacro kit is the 3.7 listing.
Which kit is the Fuse?
The listing titled 4.3 Sig P365 Fuse.
Does a Ramjet need a lighter spring?
Test the factory spring. Confirm lock back on empty, ejection, and return to battery.