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Captain O-Ring Field Medic Color Coded Master Paintball Oring Kit - 21 Sizes 63 Orings

Free shipping on orders over $29.99

$16.59

$ 7 .99 $7.99

In Stock

About this item

  • O-rings are color coded by size, eliminating the headache of matching up sizes.
  • This 63 piece Field Medic Kit contains 21 of the most common sized o-rings found in paintball equipment (3 of each size)
  • Keep the o-rings on hand to replace seals in a variety of paintball equipment including your marker, to your air/CO2 tank, and other accessories requiring o-rings.
  • Excellent for quick o-ring replacements on Azodin, Bob Long, BT, DLX, Dye, Eclipse, GOG, MacDev, Proto, Smart Parts, Spyder, Tiberius, Tippmann, and Valken Markers


Your marker can fire thousands of rounds every week, puts up with the beating of countless rainy Sundays, and withstands a number of slides through the dirt and mud. Through all of this, you still expect your marker to perform week in and week out. A small bit of maintenance is key to ensuring that your marker functions and performs at its best. One major aspect of marker maintenance is replacing your o-rings. The o-rings in your marker wear down over time by withstanding thousands of cycles along with coming in contact with dirt/debris. Our kits provide an easy and inexpensive way to keep your marker in top shape by swapping out your o-rings. The Field Medic kit by Captain O-Ring is an excellent kit to have on hand for fixing a variety of markers. The purpose of this kit is for replacing individual o-rings quickly if they fail. This kit includes 3 of each o-ring size, so it may not contain enough to rebuild your entire marker. If you are interested in replacing all of the o-rings in your marker at once, our individual marker kits are more suited for that need.


Jose Soto
2025-09-05 12:10:50
Quickly found the two o rings that I needed for my two leaking air rifles using the provided size finder. They seal well and fixed my leaks. 👍I’ve used this set about 4 times this month! A trip saver!
Tommy Cecere
2025-08-14 13:36:27
Took a few trys on finding the right kit but this one hit the mark. Thanks to customer service on helping out great people.
J. H. Landsberger
2025-07-09 09:38:32
I repair and rebuild Paintball guns, this kit comes in so handy. Every field should offer them for sale and every paintballer should have one in their bag.
E W
2025-06-29 11:52:02
A lot of the o ring I put on my bolt made it very difficult to put back in the gun and yes I greased it and it still caused air leaks and yes I double checked they were the right ones
vicente
2025-05-26 16:12:21
Good for feild maintenance would recommend.
Customer
2025-05-07 12:36:46
I recently purchased the Field Medic color O-ring kit and I'm very happy with the purchase. The quality of the O-rings and color coordinated O-rings chart were great. I plan on purchasing a bigger kit soon. This product exceeded my expectation, I Highly recommend this product.
lisa Gonzalez
2025-04-14 14:27:09
comes with a lot of different sizes
Philip Dunham
2025-02-07 17:37:21
I chose this product because it contains the majority of sizes needed for my older Tippmann A5 (according to size charts for that marker). The sizes match up, but the o-rings are too thin to properly seal. I switched back to the original o-rings to be able to use my marker, and I'm looking for a kit that is better suited to the Tippmann A5.
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