LARGE BASE + LARGE BRAKE FRONT CAP + STD CAP REPLACEMENT + STD BARREL END CAP + STD INTERNAL BRAKE. BBG - NF#2 - O33SUGESTED CALIBER.204 > .220 (-1)ADDED LENGTH (mm):239OVERALL LENGTH (mm):257DIAMETER (mm):50WEIGHT (g):552COMPONENTS SelectTHREADM12 X 1 M13 X 1 M14 X 1 M16 X 1 M18 X 1 & IMPERIAL