DTK VR-05 with M14x1l thread, 7.62 calibers, Suppressor-compensator with reactive type, three chambers divert powder gases at 130 degree relative to barrel, due to this recoil is reduced, while two compensator hole reduces barrel lift. 8 pin with M5 thread designed for additional adjustment depending from recoil and movement of weapon. Any of them can open or close unscrewing pin. For reliable operation it is recommended to use thread connection fixing device.