The Faxon EXOS-515 compensator (brand part no. FF-P-A-COMP-DS-S-01) is a 9mm pistol compensator made for the SIG P320 Full-Size. Faxon Firearms machines it from 6061 aluminum with a single expansion chamber and three ports angled at 45 degrees. The gas is vectored up and forward to push the muzzle down as the slide cycles, and Faxon measured a 22 percent cut in muzzle rise on a P320 Full-Size in its Ransom-rest testing. The rear is profiled to reach the slide nose so it sits flush on a Faxon threaded barrel. It is a range and competition upgrade that installs without a gunsmith.

Key Specifications

• It is made for 9mm pistols.
• It fits the SIG P320 Full-Size, with the rear profiled to the P320 slide nose.
• The thread is 1/2×28, matching a threaded barrel.
• It is machined from 6061 aluminum to keep weight down.
• The finish is black anodized for wear resistance.
• The design is a single chamber with three ports angled 45 degrees, which pushes the muzzle down instead of just sideways.
• It adds 1.125 inches ahead of the slide when installed on a Faxon barrel.
• The part measures 1.375 inches long, 1.054 inches wide and 1.435 inches tall including the extended rear.
• Weight is about 1.3 ounces.
• Faxon measured 22 percent less muzzle rise on a P320 Full-Size with 115 grain 9mm in Ransom-rest testing.

Frequently Asked Questions

Does the EXOS-515 fit a P320 Compact or Carry? Faxon makes this model for the P320 Full-Size. Only the Full-Size is listed.

What comes in the box? The compensator, thread locker for the muzzle threads, two 6-32 set screws that index it so it cannot rotate, and a 1/16-inch hex wrench.

Does it reduce recoil? Faxon says it does not reduce total recoil energy. It redirects the gas to counter muzzle flip so the sights settle faster.

Buy the Faxon EXOS-515 9mm Compensator for SIG P320 Full-Size, 1/2×28

Match it with a threaded barrel from our handgun accessories and parts section and order from our Lubbock, Texas gun shop. It ships fast and installs with the tools in the box.