Torro Tiger 1 servo operated airsoft recoil system! This newly developed system contains a new mantlet, barrel, modified airsoft unit, servo, and related components! Fire BB's and watch the barrel recoil! This highly awaited item is currently only for the Tiger 1 tanks and these turrets can be used to retrofit older models to have the new recoil systems! Just plug and play! *Please be aware these units come unpainted*