PMM Ultra Compensator for FN 509

Compatibility

Modification required

Model

FN 509 Compact MRD

Based on

Manufacturer documented

Based on manufacturer documentation or support information.

Requires a THREADED BARREL in 1/2x28. Most of these pistols do not ship with one — check your barrel before buying. HOLSTER CONSTRAINT, in the maker's own emphasis: "This compensator is ***LARGER*** in size in comparison to our single port so if you may need to modify your holster to accept this compensator." Same NOT-compatible list as the Duty 509. Captured design — "even if your comp comes loose it will not come off or impede function."

Check your exact model and part before ordering. Fitment limits