Home / AR Upper Components / KNS PRECISION INC PERMA PIN FIRING PIN RETAINER View cart “SOLGW 5.56 BOLT CARRIER GROUP 158 CARPENTER SP/HPT/MPI” 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 BADGER ORDINANCE Universal Safety Selector $58.00 Add to cart SOLGW 5.56 BOLT CARRIER GROUP 158 CARPENTER SP/HPT/MPI $179.00 Add to cart SOLGW GAS TUBE NITRIDE CARBINE LENGTH $19.00 Add to cart Out of stock SIONICS Gas Block Low Profile .750 $29.95 Read more