KNS Precision PERMA AR-15 Firing Pin Retaining Pin for Bolt Carrier Group

The KNS Precision AR-15 Firing Pin Retaining Pin by KNS Precision is a Black, all-metal AR-15 Firing Pin Retaining Pin designed to secure the firing pin within the bolt system. Engineered as a PERMA pin, this part blends precision machining with durable materials to deliver reliable retention under demanding firing conditions, making it a trusted upgrade for rifle enthusiasts and professional shooters alike. The description reflects its role as a dedicated AR-15 firing pin retaining pin, crafted