The SIG SAUER P365 FUSE combines full-size performance 9 mm caliber with micro-compact concealability, creating a crossover platform designed for maximum versatility. Variant with ROMEO-X collimator on the SIG-LOC COMPACT platform.
The SIG SAUER P365 FUSE combines full-size performance with micro-compact concealability, creating a crossover platform designed for maximum versatility. Chambered in 9mm Luger, the pistol is built on the P365 lineage but extends its capability with a longer slide, improved sight radius, and increased magazine capacity, offering a balance between duty-grade shootability and concealed-carry practicality.
At the core of the design is a 109 mm (4.3") carbon steel barrel with a durable DLC finish, providing enhanced ballistic performance with modern defensive ammunition. The slide is unusually long for its class at 152 mm (6"), is aggressively serrated, optics-ready, and fitted with a fiber optic front sight paired with a black serrated rear sight. The pistol is equipped with a striker-fired system and a nickel-plated flat-faced trigger that delivers a consistent and refined trigger break.
The polymer LXG grip module features laser-engraved texturing for improved control, a 1913 accessory rail, and a removable magwell. Interchangeable backstraps in small, medium, and large sizes allow ergonomic customization. The system supports high-capacity magazines, supplied as standard with two 21-round and one 17-round steel magazine, emphasizing its crossover capability between concealed carry and duty use.
The pistol is optics-ready with SIG-LOC Compact footprint compatibility and is supplied with a ROMEO-X mounted optic system in this configuration. Overall ergonomics are further enhanced by its slim 28 mm width, while maintaining a full-capacity grip profile. The overall length is 183 mm, height 145 mm, and weight approximately 703 g.
Parameters:
• Caliber: 9x19 • Barrel length: 4.3" (109 mm) • Barrel material: Carbon Steel • Overall length: 183 mm • Slide: Stainless Steel • Frame material: Polymer • Grips: LXG Polymer • Weight: 703 g • Trigger mechanism: SF • Trigger: Flat • Sights: Fiber optic front • Optics ready: YES • Optics installed: ROMEO-X • Magazine capacity: (1) 17 + (2) 21 rounds • Picatinny rail • Surface finish: Black DLC • Mount base for red dot sights (SIG-LOC COMPACT) • Manual safety: NO
Basic Pistol parameters
Barrel length:
4,3"
Weight:
0,7kg
Magazine capacity:
21+1
Caliber:
9x19
Trigger mechanism:
SF
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