The AR-15 Replacement Field Repair Spring Set has every spring you would need for a quick repair while out in the field or at the range. The set comes with a total of thirteen springs. Four springs for the upper receiver, and nine springs for the lower receiver. All springs are made in the USA.

Lower Receiver Springs

Takedown and Pivot Detent Springs

Bolt Catch Spring

Buffer Retaining Spring

Disconnector Spring

Magazine Catch Spring

Safety Selector Spring

Trigger Spring

Hammer Spring

Upper Receiver Springs

Forward Assist Spring

Extractor Spring

Ejection Port Cover Spring

Bolt Ejector Spring