Sig Sauer P365 FUSE 9mm Compact, Optics-Ready, 21+1 Striker-Fired Pistol
The P365 FUSE brings full-size performance to a carry-size frame, combining a 4.3-inch DLC-coated barrel with a high-capacity 21-round magazine system. Its optics-ready Nitron slide, nickel-plated flat trigger, and laser-etched LXG grip texture deliver a feature set that stands out for both everyday carry and range duty.
Condition
Overall Condition: Excellent condition, showing only faint signs of any prior use or handling.
Bore Condition: Excellent – Clean, mirror finish, no signs of wear.
Rifling Condition: Excellent – Sharp lands and grooves.
Specific Condition Notes: Minimal markings from previous handling and use; bore remains bright.
What’s Included
- SIG Sauer factory hard case (gray polymer)
- SIG Sauer P365 series owner’s manual
- 2× 21-round steel magazines
- 1× 17-round steel magazine
- Dawson Precision fiber-optic sight replacement rod kit
The FUSE variant lengthens the P365 slide to 4.3 inches, giving shooters a longer sight radius and improved control without sacrificing concealability. The carbon-steel barrel carries a durable DLC coating for enhanced corrosion and wear resistance.
An optics-ready slide accepts Shield RMSc and SIG ROMEO-X Compact footprints, while deep front and rear serrations ensure confident manipulation even with mounted glass. Fiber-optic front and black serrated rear sights provide a clear, daylight-bright sight picture out of the box.
The serialized stainless-steel fire-control unit houses a nickel-plated, flat-faced trigger that breaks crisply at 90°, delivering a consistent striker-fired pull. A removable polymer magwell, interchangeable back-straps, and extended beavertail round out the ergonomic package.
Three factory magazines (two 21-round extended and one 17-round flush-fit) give the pistol a class-leading 21+1 on-board capacity, while remaining compatible with all standard P365 magazines. The molded accessory rail supports compact lights or lasers for low-light versatility.




