Constructed from a premium metal alloy, the gearbox frame of the Enhanced AK Hop-Up chamber ensures exceptional mechanical strength and durability. Meticulously crafted and rigorously tested by Lonex, a renowned expert in internal parts, this frame guarantees top-quality performance. Its solid design makes it the perfect choice for enhancing the power and longevity of your replica. The frame is equipped with 8 mm ball bearings, greatly enhancing the reliability of your gearbox. Designed for use with AK replicas and suitable for Gearbox Version V3, this frame weighs 270 g and is manufactured by Lonex. The set includes a polycarbonate frame selector plate, polycarbonate tappet plate, six bearings, and screws.