The spout for some Paintball Gun Hoppers fits across many paintball guns while some are designed to only fit specific paintball gun models. It is important, therefore, to check out the spout's design when you are buying the hopper and see whether it fits on your paintball gun. Buy Paintball Marker in Pittsburgh - USA. Customize Paintball Jersey, Custom Swag, Woodsball Paintball, Knee Pads For Airsoft, Paintball Chest Protector, Paintball Headbands, Paintball Pod Pack, Paintball Holders, Dye Ltr Speed Feed, Paintball Squeegee, Paintball Back Pack and Paintball Gear.