Amoeba Short Striker Spiral Barrel and uprade parts for the sniper series are in stock at Airsoft Atlanta... "New Amoeba upgrade parts for the Striker airsoft sniper rifle are starting to land. The complete cylinder kit is a fantastic drop-in fully upgraded system that immediately boosts your velocity on a stock gun up to 470 FPS w/.20g. This and much more for the Striker coming soon. Only a limited amount of cylinder kits in stock, won't last long."