Size of muzzle: 12 2 5 B1 D3 R1 3 7 B3.5 OB1 R2L R3L 10 4 B0 D1 OB4 13 6 B2 J1 R1L 0 3.5 8 B4 OB2 R3 R4 11 4L B0.5 D2 R0 6L B3 J2 R2 R3.5 1 9 BT OB3