Home / AR Upper Components / FAIL ZERO M16/M4 BOLT CARRIER GROUP NICKLE BORON BCG View cart “Bravo Company Manufacturing Low Profile Gas Block – .750″ – Set Screw Style” has been added to your cart. 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 FORWARD CONTROLS DESIGN LDFA-A LOW DRAG FORWARD ASSIST BLACK NITRIDE SERRATED $39.99 Add to cart SOLGW Gas Block Low Profile .750 w/ Set screws – V2 $45.00 Add to cart RADIAN RAPTOR-SD AR15/M16 GAS VENTED CHARGE HANDLE $124.94 – $129.95 Select options Out of stock SIONICS Gas Block Low Profile .750 $29.95 Read more