HFC 6mm Airsoft Paintball BBs-200 rounds- pack: two bottles Amazon.com: 6mm Paintball Pellets-Bottle 400 red -paintballs: sport Outdoors But its a bad idea to use it in something like a nice aeg or tight barrel. The length of the nozzle is optimized for perfect BB placement inside the jump-up cutting resulting in a repeatable and consistent BB spin. While the flatline barrel pretty quickly went off the roadside the freak barrel ignited a revolution. What started out as a marker quickly cost much more than 500 in upgrades that many produced questionable results. An integrated flip UpDown ergonomic AUG foregrip eliminates the need to purchase the accessory and provides extra poignant options for maximum control of the rifle when on the move.HFC 6mm Airsoft Paintball BBs - 200 Rounds - Package: Two Bottles Amazon.com: 6mm Paintball Pellets - Bottle of 400 Red - paintballs: Sports Outdoors However its a bad idea to use it in something like a nice AEG or tight barrel.The length of the nozzle is optimized for perfect BB placement inside the hop up bucking which results in a repeatable and consistent BB backspin.While the Flatline barrel pretty quickly went by the wayside the Freak Barrel ignited a revolution.What started as a marker quickly cost well over 500 in upgrades many of which produced questionable results.An integrated flip updown ergonomic AUG foregrip eliminates the need to buy the accessory and provides extra gripping options for maximum control of the rifle while on the move.