KAK 1/2-28 Flash Can 3.25in AR15-UP-160. The Bore Will Allow A 9Mm To Pass Through 4.25 Oz This Is A Solid 6061 Aluminum Device That Is Designed To Direct Muzzle Gases And The Muzzle Flash Forward. Threaded 1/2-28 For 5.56 Or Similar Weapons. Black...