Home / AR Upper Components / FAIL ZERO M16/M4 BOLT CARRIER GROUP NICKLE BORON BCG FAIL ZERO M16/M4 BOLT CARRIER GROUP NICKLE BORON BCG$149.99 1 in stock [] FAIL ZERO M16/M4 BOLT CARRIER GROUP NICKLE BORON BCG quantity Add to cart UPC: 881314861781 SKU: 009-FZM16/4-01-NH Category: AR Upper Components Product ID: 11706 Related products LBE Unlimited ARBGR – Bolt Gas Rings $2.99 Add to cart Bravo Company Manufacturing GUNFIGHTER Charging Handle 556 Mod 3B – Large Latch $74.95 Add to cart SOLGW GAS TUBE NITRIDE PISTOL LENGTH $18.00 Add to cart SOLGW GAS TUBE NITRIDE MID LENGTH $19.00 Add to cart