Follow me on a spiritual journey aimed at answering one of life’s great mysteries; how do you delete recoil? If you shoot an FN 509 MRD, there now exists something that can help. FN has released their Compensator Accessory Kit.

This isn’t meant to be a review of the 509, but we have to have a baseline. This is the 509 MRD. It has a 4” barrel, sitting inside an optics-ready slide with an FNC finish. The grip has a few textures mixed together, which cause it to dig into your hand from different directions. Magazines hold 15 rounds, and the gun comes from FN with two.

The 509 is what I would consider a full-size pistol. It might be labeled “midsized” but its capabilities fall closer to a duty gun than a compact concealed carry pistol. I know plenty of people who carry full-size pistols, so I’m not saying it can’t be done, but it’s definitely not small. At its widest point, the 509 is 1.35” wide.

Regardless of the purpose of your pistol, compensators can be a very useful tool for reducing muzzle rise. The FN Compensator Kit comes with a barrel and a compensator. You just thread the comp onto your barrel…

Wait! This kit uses no threads! FN pulled up their engineering chonies and created a mounting system that feels very similar to attaching a tri-lug suppressor. Just apply pressure, turn, and release. The lack of threads means that local bans on threaded barrels won’t stop you from putting a comp on your 509.