We have paintball magazine kits for most popular markers. Those magazines found in the UNIVERSAL subcategory and will fit most paintball markers with an available under-mounted picatinny rail. For the most part, magazines are gun-specific. To filter through the magazines for your marker, simply click the subcategory. Please keep in mind that magazines for specific model releases can vary as well. Magazines made for earlier A5's will not work with the latest 2011 to current (serial number 525,000 and up) A5 guns. Original X7 magazines will not work with the X7 Phenom. For this reason, these series of markers are given their own subcategory. Please contact us if you have an compatibility questions regarding a paintball magazine for your marker.