FN 509 Magazines

FN and ProMag magazines for the FN 509 line, all in 9mm. The full size 509 and 509 Tactical take 17 round mags, and FN's extended 24 round mag comes with sleeves for full size, Midsize and Compact frames. 509 Compact (509C) mags come in 10, 12 and 15 rounds, and ProMag adds 20 and 32 round steel mags and a 50 round drum. Edge mags are listed by model and the LS Edge mag works only in the LS Edge, so match the mag to your pistol.