Strike Industries - M4 AR-15 Lower Receiver Spring Kit - SI-AR-LRSK

A set of eight significant, most commonly replaced lower receiver springs for AR-15 carbines.

They will be perfect for home and professional gunsmith shops.

Package includes:
- 1 x Bolt Catch Spring
- 1 x Buffer Retainer Spring
- 1 x Trigger Spring
- 1 x Hammer Spring
- 1 x Disconnector Spring
- 1 x Magazine Catch Spring
- 1 x Selector Spring
- 2 x Detent Spring