Every point where your gun or tank attaches, to a hose, regulator, etc, you need an o-ring. O-rings make sure the connection point is sealed tightly, so you don't lose air or CO2. This keeps your gun firing at a more consistent speed, and will ensure that you're getting as many shots as you can before you need a fill up. Becausae all o-rings degrade over time, it's a good idea to keep a full set of o-rings for your marker, to make sure whereever you might have a seal problem you can fix it.
Our selection of parts kits are great for that. They come with any peiece you might need in a pinch, including o-rings, usually designed by the manufacturer for your particular marker.
Keep your marker functioning its best with these great parts kits and o-rings!