Sig Sauer P365 FUSE 9mm 4.3" Optics-Ready Striker-Fired Pistol | 21+1 Capacity
The P365 FUSE is the most capacity-focused and shootability-oriented variant in Sig Sauer’s acclaimed micro-compact line. A 4.3 inch carbon-steel barrel and matching optics-ready slide extend sight radius and velocity, while a modular LXG grip module accepts factory 21-round magazines for full-size capacity in a slim EDC profile. A nickel-plated flat trigger, green fiber-optic front sight, and RMSc-footprint optic cut round out a package that balances carry dimensions with duty-grade performance.
Condition
Overall Condition: Very good condition, showing only light, superficial signs of prior handling or use.
Bore Condition: Excellent – Clean, mirror finish, no signs of wear.
Rifling: Excellent – Sharp lands and grooves.
Specific Condition Notes: Minor, superficial scratches and small blemishes are present on exterior surfaces. The bore remains clean and shiny.
What’s Included
- Two 21-round SIG SAUER steel magazines (extended)
- One 17-round SIG SAUER steel magazine (flush-fit)
At 4.3 inches, the carbon-steel barrel and matching Nitron-finished slide give this P365 the longest sight radius in the series, aiding practical accuracy without compromising concealability.
The slide ships factory-milled for RMSc / SIG-LOC Compact optics and retains bright green fiber-optic front and black serrated square-notch rear irons for immediate use.
A removable, serialized Fire Control Unit allows the shooter to swap grip modules, while the included LXG grip features laser-engraved hex-texture panels, interchangeable backstraps, and a removable flared magwell.
Controls are carry-oriented: a reversible magazine release supports left- or right-hand use, and the nickel-plated flat-faced trigger delivers a crisp, single-stage break.
Three factory magazines—two 21-rounders and a 17-rounder—provide up to 21 + 1 ready rounds, giving this micro-compact the firepower of a full-size duty pistol.