Hey there fellow shooters. I have here an Ati magazine tube extension for the remington 870. I bought it from the gunshow. But I dont want to mod my gun to put it on. So I am selling it. Also come with a barrel clamp. 50 bucks obo. Or maybe trade for some ammo. Looking for 22 short, 22lr, 380acp, 9mm, 10mm,45 acp, 45 lc, or some 5.45x39. Or some 12g bird shot or dragons breathe rounds. Non gouged prices Shoot me a pm if interested. Thanks located in Beaverton. .