Thick black rubber butt cap for durability with ball bottom for comfort. They are doorknob-shaped synthetic rubber butt caps. They are available in all sizes and are recommended for use with CTS medium game blanks.
Specifications
| Size | L | I/D | O/D1 | O/D2 | A |
| mm | mm | mm | mm | mm | |
| BRC 19.0R | 40.5 | 18 | 32.8 | 23.5 | 37 |
| BRC 22.0R | 48 | 22 | 37.8 | 28 | 42 |
| BRC 25.0R | 53.5 | 25 | 38 | 31 | 47.5 |
