Apex Tactical Specialties FN 509 Threaded Barrel for 4" Finished in Black. This drop in threaded barrel is designed specifically for the FN 509 model pistols with a factory 4.00" barrel, including the FN 509 Midsize. This upgraded barrel is made from Stainless Steel and heat treated for long lasting durability, it is then finished in a Black Melonite and contrasting Stainless Steel fluting. Increase your FN 509 accuracy due to this barrels 1:10 twist rate and do it easily with its' true drop in ability, no fitting required. This FN 509 drop in barrel has a 1/2 x 28 threaded muzzle and comes included with a thread protector and a light recoil spring assembly for use when shooting this barrel with a compensator.
Part Number: ATDBRL-BLK
Out of Stock.