Strike Industries ARLRSK Lower Receiver Spring Kit AR-15/M4 Black

The Strike Industries ARLRSK Lower Receiver Spring Kit is a 9-piece spring replacement set designed for building or servicing stripped AR-15 and M4 lower receivers. This kit consolidates the small, easy-to-lose springs all builders need in one package: bolt catch, disconnector, buffer retainer, trigger, hammer, magazine catch, selector, and two detents.

Whether you're assembling a fresh lower from the ground up or refreshing an existing build, the ARLRSK keeps every critical spring on hand so nothing slows the job down on the bench. Finished in black and purpose-built for the AR-15/M4 platform, this is a staple of any AR builder's bench.