PMM 509 Competition Combo: Ultra JTTC & Competition Magwell Combo w/ Muschi
Maximize performance out of your FN 509 Tactical Full Size with our Competition Combo!
Included in this package:
1x PMM 509 Ultra Compensator for factory threaded barrels
1x PMM 509 Competition Magwell (only for use with factory 24 round magazines)
1x PMM 509 Muschi Mounting Block