Centurion Arms - Hard Chrome Sandcutter Bolt Carrier Group These are complete with Centurion's new V2 bolts! See description below! Why we like these: This one is for the "buy once, cry once" crowd. These Centurion Hard Chrome Sandcutter BCGs with their new V2 bolts are our premium BCG option... MSRP: Was: SALE: $325.00 Out of stock