With counter-clockwise thread (14mm CCW)

The Asian standard heavily imposed by Tokyo Marui and Cyma entirely dominates the market using inverted threads. Adjust your carbine's design from within the perimeter of supreme compatibility: Barrel Attachments and Flash Hiders with 14mm CCW (Counter-Clockwise) inverted threads. Screwing to the left violently prevents the accidental unscrewing of the suppressor when aggressively striking wooden barricades or metal walls in CQB spaces.