Quick detach BET. Lightweight polymer barrel-extension-tube with a heavy-duty aluminum flash suppressor/barrel mount. The flash suppressor fits on all 14mm CCW threads and allows the lightweight BET to be attached and detached quickly, simply lift a lever arm on the BET and it comes off.
Due to legal requirements, all Barrel extension tubes are empty and without foam or sound baffles. Therefore, it feature no measurable sound reduction. It’s intended for looks only.