Home / AR Upper Components / KNS PRECISION INC PERMA PIN FIRING PIN RETAINER View cart “KNS PRECISION INC PERMA PIN FIRING PIN RETAINER” has been added to your cart. KNS PRECISION INC PERMA PIN FIRING PIN RETAINER$10.00 1 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 RADIAN RAPTOR AMBIDEXTROUS CHARGING HANDLE AR15/M16/M4 $94.94 – $129.95 Select options LBE Unlimited ARBGR – Bolt Gas Rings $2.99 Add to cart Out of stock SIONICS Gas Tube W/Roll Pin – Melonite – Midlength $16.95 Read more SOLGW 5.56 BOLT CARRIER GROUP 158 CARPENTER SP/HPT/MPI $179.00 Add to cart