Reduces the power of the G&G MGCR rifles
Red color valve (3.8), stock valve
7” : 371-384 fps
10” : 390-417 fps
12” : 407-420 fps
Gold color valve (3.4)
7” : 331-344 fps
10” : 344-358 fps
12” : 338-361 fps
Silver color valve (3)
7” : 305-321fps
10” : 312-321fps
12” : 298-321fps