Home / AR Upper Components / SOLGW MIL-SPEC FIRING PIN M4/AR15 “BCM LOW PROFILE GAS BLOCK 625” has been added to your cart. View cart Out of stock SOLGW MIL-SPEC FIRING PIN M4/AR15$12.34 Out of stock Want to be notified when this product is back in stock? Notify me UPC: 785939517910 SKU: M4FIRINGPIN Category: AR Upper Components Tag: solgw Product ID: 15326 Description Description . Related products Out of stock SPRINCO M4/AR-15 EXTRA POWER EXTRACTOR SPRING 5 COIL, CRYOGENIC PROCESSED $3.95 Read more Out of stock Bravo Company Manufacturing GUNFIGHTER Charging Handle 556 Mod 4B – Medium Latch $74.95 Read more CMMG EJECTION PORT COVER KIT MK3 $14.95 Add to cart AERO PRECISION 5.56 AR15 BOLT CARRIER GROUP BLACK NITRIDE $154.99 Add to cart