Springer Precision FN 509 Midsize (M) 9mm extended capacity basepads are CNC machined from aluminum and hard anodized for a long service life. This lengthens the magazine and adds 3 rounds to your 15 round magazine. The unique locking mechanism allows a very solid attachment with a simple backing out of the discrete set screw.
*We include a .050 hex wrench that makes installation and removal a breeze. Will not work with a magwell.
Custom engraved and custom colors are non-returnable.