This magazine is compatible with your FN 509. It is constructed of stainless steel with at flat black finish, high visible anti-tilt follower, and flat base pad.*Note- This mag will not work with FNS TM or FNX TM pistols.
WARNING: WARNING: Cancer and Reproductive Harm - www.p65Warnings.ca.gov
WARNING: WARNING: Cancer and Reproductive Harm - safety:PROP 65 WARNING: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.
