Sig Sauer P365 FUSE 9mm 3.7in Compensated ROMEO-X

The Sig Sauer P365 FUSE is a compact, optics-ready 9mm pistol featuring a 3.7-inch compensated barrel and an integrated ROMEO‑X SIG‑LOC optic. It pairs a stainless-steel, Nitron-finished slide with a polymer grip module and X‑RAY3 day/night sights. The slide incorporates FUSE serrations and an integrated expansion chamber for improved recoil management.

Key Specifications

• The caliber is 9mm.
• The barrel measures 3.7 inches and features an integrated compensator.
• The slide material is stainless steel with a Nitron finish.
• The grip module material is polymer.
• The optic is a ROMEO‑X SIG‑LOC compact optic with a sealed, gas-purged enclosure.
• The sights are X‑RAY3 day/night sights.
• The trigger is a flat-faced striker-fired design.
• Included magazines are listed as (1) 17‑round and (2) 21‑round steel magazines per manufacturer listing.
• The overall length is 7.2 inches and the overall height is 5.7 inches.
• The weight with magazine is listed as 23.4 oz.

With its optics-ready slide, compact dimensions and compensated slide design, the P365 FUSE offers a balance of controllability and capacity in a small package. Its configuration is well suited to users seeking a compact pistol with built-in optic integration and upgraded sighting for practical everyday carry and duty-style applications.