Small unexpected parts like make a big difference in reliability! - Fortis Manufacturing Enhanced Detent and Spring Kit

This is one of a very few select products made with stainless rather than unknown metal or milspec. These parts make a big difference in the ultimate reliability and function of your platform. There are a couple others of similar quality and composition, yet I've found this to be the ones I use in my loved ones builds and recommend to everyone. Actually I'd say even upgrade and get their whole LPK and since the bolt catch is THE most common part to fail you will be upgrading that as well as a few of their excellent product's such as the selector too. This is one of my standard go to items for good reasons.