The KAD MK23 Drum Mag is one of the flagship releases from Kross Airsoft Design. This pre assembled kit lets you get 400 rounds for your mk23 pistol or DMR setup without having the burden of additional mags. Less reload, more pew! A self assembly option is not available for this product. Available options are: It's fully assembled (we provide everything, completely fitted) Send us your mag (we do the rest) Both options will arrive to you fully assembled ready to go. We only assemble adapters using genuine Tokyo Marui magazines for the donor mag. If you provide a donor mag which is not TM, we will contact you to discuss the available options. If assistance is required once you receive your product, please contact us for support
