Here we have the two crew served “minigun”  GAU-2B weapon stations. Each station comes with nine (9) barrel sets. Three of each depending on the time period you are building for. This ensures an authentic model tailored to your specific build. This set is designed for use with out internal rib structure and will integrate with the set with only minor sawing. Brass catching bag also in place. 
Again this particular set is best suited to use WITH our internal rib set. Please view our other listing with set specifically designed to work without our internal rib structure.