Suitable for all RTI models. As O-Rings are subject to wear and eventually need replacement, this kit is a must-have.
The complete kit for RTI Arms, includes:
| Size | Quantity |
| 4x1 (NBR 70) | 1 |
| 6x1 (NBR 70) | 1 |
| 1.5x1.5 (NBR 70) | 1 |
| 2.5x1.5 (NBR 70) | 1 |
| 3.5x1.5 (NBR 70) | 1 |
| 5x1.5 (NBR 70) | 1 |
| 5.5x1.5 (NBR 90) | 1 |
| 10x1.5 (NBR 70) | 1 |
| 12x1.5 (NBR 70) | 2 |
| 3x2 (NBR 70) | 1 |
| 4x2 (NBR 70) | 1 |
| 5x2 (NBR 70) | 1 |
| 7x2 (NBR 70) | 1 |
| 17x2 (NBR 70) | 1 |
| 18x2 (NBR 70) | 1 |
| 20x2.5 (NBR 70) | 2 |
| 25x2.5 (NBR 70) | 2 |
