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