CRBN IC PWR NANO Barrel - BlackThe IC NANO PWR Barrel combines our famous ultra lightweight injected carbon back with the proven PWR Insert System and introduces our new micro ported aluminum barrel tip. IC barrel back features injected long strand carbon fiber mated to aluminum threads for unmatched rigidity and weight savings. NANO aluminum barrel tip features 700+ optimized micro porting to reduce sound signature while eliminating water and debris being drawn into the bore.