Luth-AR AR-15 Bolt Catch Assembly with Spring and Pin

A complete AR-15 bolt catch assembly with the catch, the spring, the buffer plunger and the roll pin. Everything that corner of the lower receiver needs arrives in one package instead of three separate small parts bags.

The bolt catch is the piece that locks the carrier back on an empty magazine and releases it on demand. It is also one of the easiest assemblies to lose during a build, because the spring and plunger are tiny and the roll pin sits in a slot that likes to launch parts across a shop floor. Useful as a build component and just as useful as a repair part.