Apex 509 Barrel + PMM JTTC + Factory yellow spring Package
One stop shop for compensating your FN 509!
This includes the FN 509T, 509 as well as the 509 midsize
* Apex Tactical 4" Threaded barrel in 1/2x28
This Apex 9mm Threaded Barrel is designed specifically for the FN 509 model pistols with a factory 4.00" barrel. This includes the FN 509 Midsize. The heat treated stainless steel barrel has a black Melonite finish with contrasting stainless flutes. The barrel features a 1:10” twist rate that is designed to increase accuracy performance. The thread pattern is 1/2-28 and a thread protector is included. This barrel is a true drop-in and requires no fitting.
*PMM JTTC for the FN509 in Black or FDE
*Factory FN 'Yellow" recoil spring assembly