Faxon Firearms Exos-515 Ffpacompdss01 Exos515 Comp Sig

The Faxon Firearms Exos-515 is a pistol compensator engineered for SIG P320 Full-Size shooters who want to tame recoil and muzzle rise without adding bulk. Built from 6061 aluminum with a durable black anodized finish, this compensator uses an angled single-chamber port design that deflects muzzle gases upward as well as outward—a geometry that meaningfully reduces both vertical and horizontal muzzle movement shot to shot. The result is faster recovery between rounds and improved consistency, especially helpful if you're pushing your P320 at the range or in precision shooting applications.

Faxon has optimized the Exos-515 to work with their own barrel line, fitting flush with the slide when used as intended. If you're pairing it with an aftermarket barrel from another maker, the barrel should not protrude more than .600" from the slide for a clean fit. At just 1.4 inches long and 0.08 pounds, the compensator adds minimal weight while keeping your gun's profile compact. Installation includes everything you need: thread locker, two set screws, and an Allen wrench.

Keep in mind that adding a compensator changes how your P320 cycles. You may need to dial in your recoil spring, ammunition choice, and lubrication schedule to optimize reliability—especially if you run lighter loads. Faxon has confirmed fitment on the P320 Full-Size; the Compact/Carry models were not tested, so compatibility is not guaranteed on those frames. This is a serious upgrade for shooters willing to invest time in tuning.

Key Features

• Angled single-chamber port design reduces both vertical and horizontal muzzle rise
• 6061 aluminum construction with black anodized finish resists corrosion
• Designed to fit flush with SIG P320 Full-Size slide
• Includes thread locker, set screws, and installation wrench
• Lightweight at 0.08 lbs—minimal impact on gun balance

Specifications

Frequently Asked Questions

Is the Exos-515 compatible with my SIG P320?

The Exos-515 has been tested and confirmed compatible with the SIG P320 Full-Size. It was not tested on the P320 Compact or Carry models, so fitment on those variants cannot be guaranteed.

What's included with the compensator?

Each Exos-515 comes with thread locker, two 6-32 set screws, and a 1/16 inch Allen wrench for installation.

Will it fit flush with my slide if I use a non-Faxon barrel?

The compensator is optimized for Faxon barrels. If you use a different manufacturer's barrel, it should not protrude more than 0.600 inches from the slide to achieve a flush fit.

Do I need to change anything about how I run my P320 after installing the compensator?

Installing a compensator can affect your pistol's cycling characteristics. You may need to adjust your recoil spring, ammunition selection, and lubrication to optimize reliability with the Exos-515.