Home / AR Upper Components / SOLGW MIL-SPEC FIRING PIN RETAINER COTTER PIN M4/AR15 View cart “SOLGW GAS TUBE NITRIDE CARBINE LENGTH” has been added to your cart. Out of stock SOLGW MIL-SPEC FIRING PIN RETAINER COTTER PIN M4/AR15$3.79 Out of stock Want to be notified when this product is back in stock? Notify me UPC: 785939517927 SKU: FIRINGPINRETAINERM4 Category: AR Upper Components Tag: solgw Product ID: 16090 Description Description SOLGW MIL SPEC FIRING PIN RETAINER COTTER PIN M4/AR15 You may also like… Out of stock SOLGW AMBI SAFETY SELECTOR KIT $28.50 Read more Related products SPRINCO ENHANCED CHROME MOLY EJECTOR AND SAFETY SPRING $4.39 Add to cart Out of stock SOLGW 5.56 BOLT CARRIER GROUP 158 CARPENTER SP/HPT/MPI $179.00 Read more LBE Unlimited ARBGR – Bolt Gas Rings $2.99 Add to cart Out of stock SIONICS Upper Receiver Parts Kit $29.95 Read more