Quick view Ferfrans CRD (Concussion Reduction Device) The FERFRANS CQB Modular Muzzle Brake System is a two part system consisting of the muzzle brake and a CRD (Concussion Reduction Device) with a built in quick attach/detach mechanism. By itself, the... MSRP: $189.95 Was: Now: $174.95 Out of stock
