The Sig Sauer P365 Fuse is a compact 9mm Luger pistol built on a steel AXG frame with a 4.3-inch carbon steel barrel finished in black Nitron. It ships with 17+1 capacity, an optic-ready serrated slide, and a Picatinny rail, with fiber optic sights standard. The stainless steel frame includes a beavertail and an LXG grip module. 
 

Key Specifications 

• Brand: Sig Sauer 
• Model: P365 Fuse 
• Caliber: 9mm Luger 
• Action: Semi Auto 
• Capacity: 17+1 
• Barrel Length: 4.3 in 
• Color/Finish: Black Nitron 
   

Detailed Features 

• Steel AXG compact frame with beavertail 
• Optic-ready serrated slide cut 
• 4.3-inch carbon steel barrel with black Nitron finish 
• Picatinny rail for accessory mounting 
• Fiber optic sights installed

Owners of the P365 Fuse frequently point to the AXG steel frame as the reason they chose it over the standard P365. The added weight tames recoil noticeably, and the LXG grip texture gets consistent praise for staying put in wet conditions. Most find the compact frame easy to carry despite the metal construction.

The optic-ready cut and Picatinny rail are appreciated by shooters who want to run a light or red dot without additional milling. The 17+1 capacity in a compact package is a common selling point. A portion of owners note that the fiber optic front sight can be hard to pick up indoors under low light.

Value perception on the Fuse is mixed. Buyers who compare it directly to other steel-frame compacts generally feel the price is justified, while those upgrading from a polymer P365 sometimes question whether the frame upgrade alone warrants the cost. Trigger feel is generally well-regarded, though a small number of owners prefer a shorter reset.