Owner’s Manual 2020

13
If you have concerns about the compatibility of a particular ammunition
type with your FN pistol, contact FN customer service before using any such
ammunition.
4. DRY FIRING & “DUMMY” ROUNDS
Dry firing is defined as firing a firearm with no ammunition in the chamber.
Occasional dry firing of your FN 509 and for disassembly is acceptable.
Regularly dry firing your FN 509 pistol for practice or training may result in
damage to the striker. “Snap Caps” (inert chamber inserts that allow a
firearm to be dry fired without damaging the firing pin) are commercially
available for those who wish to practice firing without live ammunition.
CAUTION: Always keep the muzzle of your firearm pointed in a safe
direction, even if you are certain it is unloaded.
CAUTION: Store inert ammunition separately from loaded ammunition to
avoid unintended firing of the pistol. Failure to follow this warning could
result in serious injury or death.
CAUTION: “Dummy Rounds” with empty primer pockets are suitable for
loading/unloading practice and some training activities but do not protect
the striker during dry firing.
5. NOMENCLATURE
In conventional gun terminology, the position and movement of parts are
described as they occur with the firearm horizontal and in the normal firing
position: the muzzle is forward or front, the pistol grip is rearward or rear,
the trigger is downward or underneath, the sights are upward or on top. For
general parts nomenclature refer to Figures 1 and 2.
The illustrations in this manual depict the FN 509 series pistol. Some
variations may not be shown.