Strike Ar-15, Si Ar-lrsk-pro Lower Spring Gunsmith Kit

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.

Finish: Black
Type: Spring Kit
Model: AR-15
Size: Mil-Spec
Material: Metal