The Sig Sauer P365 Fuse Comp 9mm pistol with a 3.7-inch barrel and integrated compensator (brand part no. 365XF-9-COMP) is a high-capacity micro-compact from Sig Sauer. The slide is cut for a red dot on the SIG-LOC footprint, and the X-Ray3 day and night sights stay usable through the optic window. The compensator is built into the barrel and slide to keep the muzzle flat on follow-up shots. It holds 17 or 21 rounds depending on the magazine, in a frame that stays easy to carry.

Key Specifications

• The chambering is 9mm, the standard carry caliber.
• The barrel is 3.7 inches, long enough for good velocity in a compact slide.
• An integrated compensator helps control muzzle rise on rapid strings.
• The slide is optic ready with the SIG-LOC footprint for micro red dots.
• The sights are X-Ray3 day and night sights, a high-visibility set for low light.
• Capacity is 17 or 21 rounds, depending on the magazine in use.
• The slide is stainless steel with a Black Nitron finish.
• The frame is polymer with interchangeable backstraps to adjust the grip fit.
• Slide serrations are Fuse-style, which makes the slide easier to grip and rack.
• The pistol is 7.2 inches long and weighs 22.9 ounces.

Frequently Asked Questions

Does the P365 Fuse Comp come with night sights? Yes. It has X-Ray3 day and night sights.

Is it optic ready? Yes. The slide is cut for the SIG-LOC footprint, which fits compatible micro red dots.

How many rounds does it hold? It takes 17-round and 21-round magazines, so capacity depends on which magazine is loaded.

Buy the Sig Sauer P365 Fuse Comp Pistol, 9mm, 3.7-Inch

The Fuse Comp combines three popular upgrades in one: a compensator, an optic cut and night sights. That saves the cost and time of adding them later. Order it from our Lubbock, Texas gun shop for fast, insured shipping to your FFL, and browse more semi-auto handguns while you are here.