Check the listing for details. Spring-It™ Buffer Retainer Lock - install buffer spring with ease. Color: Red, Condition: New. Listed at 8.99 USD. Spring-It™ Buffer Retainer Lock.This handy tool lets you easily remove and install buffer and buffer spring, as well as lock buffer retainer in place so you don`t lose it while the buffer is removed. Especially handy when you are running a flat buffer spring.Pull out the takedown pin, align Buffer Retainer Lock on top of the buffer retainer and safety selector, push down while holding buffer with your thumb and lock using the takedown pin.Made from durable and chemically resistant material that won't scratch or mar your equipment.more info at spring-it.net What's Include - Spring-It™ Buffer Retainer Lock - Lanyard - Instructions Shipping Free Economy shipping in the United States - USPS First Calss Envelope (no tracking). If you prefer shipping with tracking, please select the other options for additional charge. Returns If you have any problems with your order, please let us know and we'll work with you to resolve them.