The KAC QDC CQB PRG 7.62 Sound Suppressor mounts to QDC line of muzzle devices. This 7.62 suppressor features PRT/PRG(Pressure Reduction Technology) which vents pressure away from the user. Utilizes a sintered Inconel body. The CBQ PRG(6.4") is the shorter variant of the full size CRS PRG(7.9").