Home / AR Upper Components / KNS PRECISION INC PERMA PIN FIRING PIN RETAINER KNS PRECISION INC PERMA PIN FIRING PIN RETAINER$8.50 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 $8.50 Add to cart Related products Out of stock SIONICS Gas Tube W/Roll Pin – Melonite – Midlength $16.95 Read more Bravo Company Manufacturing GUNFIGHTER Charging Handle 556 Mod 4B – Medium Latch $74.95 Add to cart Out of stock Bravo Company Manufacturing Low Profile Gas Block – .750″ – Set Screw Style $44.95 Read more RADIAN RAPTOR AR10/SR25 CHARGE HANDLE $104.45 – $128.20 Select options