FN 509 Midsize Trigger Upgrade by Apex
Apex trigger upgrades are now available for the FN 509, FN 509 Tactical and FN 509 Midsize. Apex has also released an armorer’s tool for the FN 509 and FN Compact.
Apex trigger upgrades are now available for the FN 509, FN 509 Tactical and FN 509 Midsize. Apex has also released an armorer’s tool for the FN 509 and FN Compact.