Fire Support

WIITECH MP5 (WE) 80% Delayer Spring (Item No.29) 

This upgraded 80% delayer spring is specially made for professional shooter and competition needs, because it reduces the force on ejector lever to release the knocker, therefore it reduces the rate of wear of the ejector lever and bolt, it also smooths the blow-back movement of the bolt in order to increase shooting efficiency. The supreme quality Japan steel piano wire has outstanding durability and reliability.