
Large frame FN 509 pistol compensator - 9mm
Edge 509
- Weight: 0.9 OZ w/ setscrews installed.
- Size: .94"L x 1.25"H x 1.05"W
- Material: 7075 Aluminum
- Coating: BLACK Type 3 Hardcoat Anodizing, TAN Type 2 Anodizing (both 70-73 Rockwell)
Our compensators are manufactured and anodized in the USA to the highest quality and standard. We have had no issue with either coating thus far, but we estimate the black will out last the gold after continuous abuse and use. We recommend you clean your comp when you clean your gun to maintain its luster and finish from corrosion.
Not Compatible with 509T models.
- Compensator
- Red Loctite
- Allen Key
- Set Screws
- Written Instructions
Adding our compensator to your pistol, in rare circumstances, can effect your reliability and may require some fine tuning. We have ran thousands of rounds through multiple firearms in different set ups with little to no issues, but this does not mean that an issues in reliabilty can not occur. Depending on your existing recoil spring and striker spring, it may effect your slides ability to cycle. Thus far we have not had any recorded issues on tested firearms. We recommend a Qualified Gunsmith install or make any modifactions to your firearm. The Aluminum 7075 compensator will eventually wear out after years of use over thousands of rounds. It depends on the load and weight of the rounds used consistently, but we have built them to last with the best material out there.
Our set screw design wedges the compensator onto your barrel, pinching it and keeping it tight during extended use. ONLY SECURE SET SCREWS ONTO THE BARRELS SHOULDERS AND NOT THE THREADING. Depending on your exact barrel, the comp may sit flush to the slide or have a small gap. DO NOT tighten set screws onto the threading, this may cause damage to the threading.
The Arc Edge is the first of the Arc Division Edge line of compensators for FN handguns and is compatible with the 509, 509T, and 509C. The Edge509 will help you shoot flatter and faster in all situations. We offer our comp threaded in the standard 1/2×28 threaded barrels.



Reviews
You guys are killing it!
Spent a lot on arc stuff over the past year and that will not stop. I was expecting just to get a cool looking comp for the 509 that’s different from the PMM I see everyone else running and man this one out preforms all of my other comps. Not to mention the fitment is 2nd to none. Truly beyond happy with this purchase