Sig P365 Parts & Sights

Sig P365 parts and upgrades: night sights, triggers, grip modules, slides, barrels, magwells and magazine releases. Ships to your door where legal.

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Buying Sig P365 Parts & Sights online

The P365 is modular: the serialized fire control unit moves between grip modules and slides, so you can turn a P365 into an XL or X with the right parts. Popular upgrades include flat triggers, night sights and extended magazine releases.

Check the model and optic footprint before ordering slides and sights. Shop P365 holsters.

Sig P365 Parts & Sights FAQ

Can I turn my P365 into a P365XL?

Yes. With an XL slide assembly and grip module, the P365 fire control unit becomes an XL. The fire control unit is the serialized part.

Which red dot fits the P365?

Optic-ready P365 slides take a micro red dot, but the footprint depends on the slide. Check the slide and the optic listing before ordering.

Do gun parts ship to my house?

Most parts, sights and accessories ship straight to your door. A frame or receiver is the regulated firearm and ships to an FFL. Some states restrict certain parts, which the product page lists.