Shop › FZ BASIC SEMI KIT BOLT & HAMMER FZ BASIC SEMI KIT BOLT & HAMMER $189.99 FailZero Bolt Carrier Group With Hammer, Completely Assembled, EXO Coated, Fits AR-15, Nickel Finish FZ-AR15-01-SAH Quantity: Add To Cart Added! FailZero Bolt Carrier Group With Hammer, Completely Assembled, EXO Coated, Fits AR-15, Nickel Finish FZ-AR15-01-SAH