Fn 509 Compact Direct Drop-In Threaded Barrel
Fn 509 Compact Direct Drop-In Threaded Barrel, Manufactured from premium quality Cold Hammer forged stainless steel blanks 1:10" twist rate Under cut thread intercept to accommodate a wide variety of attachments Threaded A 1/2-28 to accommodate standard muzzle attachments Black Melonite Finished for longevity and durability Expected Results: Direct Drop-in replacement of factory barrel. (No fitting required) Applicable to What Guns: Mfg: Apex Tactical Specialties Inc