ASG Ultimate EVO CNC Performance Hop UpConstructed from a single piece of CNC 'Aerospace' Aluminium, this HOP Unit is extremely tough and has has clearly had a lot of passion put in to it. It is widely compatible with almost every HOP Rubber and BB weight on the market, and claims it will yield a 20% increase in range and accuracy. The Stepless HOP Adjustment allows you to make ultra precise adjustments, without being limited to certain pre set positions. The Adjustment Wheel is laser