The Strike Industries AR-15 Lower Receiver Spring Replacement Kit Includes 9 Important springs That Are commonly replaced Or Easily Lost When Building Stripped AR-15 Lower receivers. The 9-Piece Kit Includes springs For The Bolt Catch, disconnector, Buffer Retainer, Trigger, Hammer, Magazine Catch, Selector, And Two detents. Type: Spring Kit Model: AR-15 Size: Mil-Spec Material: Metal Finish: Black
