Hoppe's 9 Rifle Chamber Brush AR 7.62mm /.308 Double Diameter Ca. For decades Hoppe's Rifle Chamber Brushes have been the choice of law enforcement military and shooting enthusiasts the world over. These effective Gun Cleaning Gun Parts made by the experts at Hoppe's penetrate deeply and remove fouling easier than other brushes. With a two part cleaning system the Hoppe's AR15 Chamber Brush doubles as a dual purpose accessory that can be used in conjunction with Hoppe's No. 9 or 10 cleaning rods. Used regularly a Hoppe's AR15 Chamber Brush can last well past its useful life. Features of Hoppe's 9 Rifle Chamber Brush AR: Available in a three pack of brushes Bore brush section is phosphorus bronze and chamber section is steel 8-32 threading Fits standard cleaning rods Package Contents: Hoppe's 9 Rifle Chamber Brush AR Hoppe's 9 1325P: Rifle Chamber Brush AR 7.62mm /.308 Double Diameter Ca