This is a rarity that I've had for a while. It's an Autococker barrel that has a brass filter on the business end to muffle the sound of shots; it cannot fire paintballs, but if you're just shooting air, it cuts down on the report by a good amount. This is great for airsmiths or players who live in areas where they don't want to make a bunch of noise when testing or goofing around.
I'll sell this for $25 shipped or trade for a T-stock or L-stock that I can use on my Sniper II.