Available in 3x Bag Rebuild Kit Whether you’re grinding through rainy Sundays in a tournament or sliding through the mud while playing woodsball with your friends, your marker takes a beating on the field. We fire thousands of rounds and expect peak performance from our equipment at all times, but even the toughest and most well-engineered gear needs a tune-up from time to time. Fresh o-rings are the secret to a reliable marker that performs on the field for you when you need it most. Over time, constant cycling along with debris entering your marker wears down your seals. This leads to efficiency losses and leaks, and eventually your marker will not maintain enough pressure to cycle properly. Captain O-Ring’s o-ring rebuild kits offer an inexpensive and simple, yet professional-grade solution to keep your marker running in top shape day in and day out. The Science of the Seal: Captain O-Ring has proudly been offering our color coded o-rings kits since 2011. These kits feature proprietary, fully color-molded NBR70 O-Rings. We use the exact same high-performance NBR70 (Buna-N) material found in many of your marker's original factory seals. The only difference? We swap the standard carbon black toner for colored toners before before molding them to our stringent ISO3601 spec. The result is an o-ring kit that is color coded by size to make your rebuild and all future maintenance easier than ever. Material: BN70 / NBR70 (Buna-N) Performance: Same chemical and physical properties as black buna-n o-rings. Advantage: Color coding makes size identification and maintenance effortless. Each of our color coded marker rebuild kits include our exclusive o-ring placement list, showing you exactly where every seal belongs. And the best part, once you rebuild once, your marker is fully color-coded. So future rebuilds are easy, just follow your existing colors and replace with the same size/color in each rebuild. No more guessing, just drop in the o-ring size/color needed and get back in the game.
![MacDev Cyborg 04 - COLOR CODED O-Ring Kit [3x Bag]](https://cdn.shopify.com/s/files/1/0776/9938/3519/files/s103824418399842857_p103_i5_w1200.jpg?v=1770568458&width=480)
![MacDev Cyborg RX - COLOR CODED O-Ring Kit [Select 3x Bag/ 5x Box]](https://cdn.shopify.com/s/files/1/0776/9938/3519/files/s103824418399842857_p104_i5_w1200.jpg?v=1770568459&width=480)