Now, we all love the realism of a GBBR, the realistic operational controls, but, we don't like the leaky gas magazines, the cool down and the maintenance burden. The ATM gearbox mechanically controls the movement of the bolt carrier to achieve the same stroke as a real gun. ATM should be used in the same sequence of a real gun in order to fire consisting of the following steps: pull back the bolt carrier, check the chamber, advance the bolt carrier forward, and switch the fire select. Features New and revolutionary gearbox Operates like a GBBR Uses AEG magazine Real recoil All the bonuses of a GBBR with none of the downsides 11.1V battery Perfect for LDT receivers Installation Notes Damage caused due to incorrect and failed installation is not covered under warranty. We highly recommend getting this installed by an experienced technician.
