Home / AR Upper Components / KNS PRECISION INC PERMA PIN FIRING PIN RETAINER KNS PRECISION INC PERMA PIN FIRING PIN RETAINER$10.00 2 in stock [] KNS PRECISION INC PERMA PIN FIRING PIN RETAINER quantity Add to cart UPC: 851876003011 SKU: PERMA Category: AR Upper Components Product ID: 3461 Description Description Replaces standard cotter pin found in the bolt carrier to retain the firing pin as in original Stoner rifles. ***DOES NOT FIT .308 BOLT CARRIERS*** You may also like… KNS PRECISION INC PERMA PIN FIRING PIN RETAINER $10.00 Add to cart Related products Out of stock BCM LOW PROFILE GAS BLOCK 625 $44.95 Read more SPRINCO ENHANCED CHROME MOLY EJECTOR AND SAFETY SPRING $4.39 Add to cart Out of stock SPRINCO M4/AR-15 EXTRA POWER EXTRACTOR SPRING 5 COIL, CRYOGENIC PROCESSED $3.95 Read more Out of stock RADIAN RAPTOR-SD AR15/M16 GAS VENTED CHARGE HANDLE $124.94 – $139.95Price range: $124.94 through $139.95 Select options This product has multiple variants. The options may be chosen on the product page