SMALL BASE + EXTERNAL BRAKE + STD BARREL END CAP + STD THREAD ADAPTORADDED LENGTH: 191mm OVERALL LENGTH: 174mm DIAMETER: 44mm WEIGHT: 345gTHREAD: M12 X 1, M13 X 1, M14 X 1, M16 X 1, M18 X 1, & IMPERIALSUGESTED CALIBER: .204 > .220 (-1)BBG - NF#3 - O2SUGESTED CALIBER.204 > .220 (-1)ADDED LENGTH (mm):191OVERALL LENGTH (mm):174DIAMETER (mm):44WEIGHT (g):345COMPONENTS Select