Get Reload just got shipment of these ACE Stocks from MadBull Airsoft and these are priced at US$70.00 each... "These stocks are CNC machined out of durable aircraft grade aluminum. Tough made stocks used to bash windows and other forced entries. Combined with our patent pending quick-release fast-change battery system swap out your battery within seconds! This is an airsoft first and a revolutionary design for Li-Poly configurations.