Marauder "burping" problem!!!

[dued711]

I finally got a new pull pin for my marauder (friend lost one of them on the field ) as well as a new O-ring for the striker. I cleaned the marker real well, and noticed that the striker O-ring that wasn't really that dinged up, so I lubed it and left it on the striker instead of replacing it. Anyway, I air up the gun with my HPA tank, and when I pull the trigger, it fires, and then it seems to fire once or twice more before settling in the un-cocked position, I believe the term for this is "burping." Now, I haven't put my new striker O-ring on yet, but I have confirmed that there is no paint or dirt in the marker or on the bolt, and the bolt was properly installed. As a side note, the 2 O-rings on the bolt are VERY worn, and have expanded and have a good many scratches. The place I bought the striker O-ring and pull pins from said that the manufacturer stopped making the O-ring for the bolt, and that I couldn't purchase it. Does this mean that Brass Eagle makes their own O-rings a size that doesn't exist elsewhere? Would I be able to pick up some size O O-rings (that's the size it says the bolt O-ring is) at Home Depot or something, or does it need to be the specific one advertised for the Marauder? Sorry for the super long question, thanks for any help!

[Zofarr]

If you have an o-ring from the striker, take it to home depot with you, and you should be able to find one of that size, I don't think brass eagle has propriatery o-rings. replace them all lube it up and see if the problem persists.

EDIT: Marauders are odd markers, after a few hundred casses the breech becomes de-formed because it is made of plastic, when this happens, the marker is dead.

[Headhunter]

Your return spring (main spring) or valve spring may be weakening or not strong enough. Your sear/sear notch could also be worn. Check your sear spring also.

[WhiteRiverPB]

The 4 things that wear the most in a blowback paintball gun are the drive spring, sear, hammer and hammer o-ring.

Check those.

[wolf16731]

Usually, Brass Eagle uses "tank" orings that are used throughout the gun. Basically, pick up orings made for your co2 tank and those should be the right size.

[Ironman289]

Originally Posted by wolf16731

Usually, Brass Eagle uses "tank" orings that are used throughout the gun. Basically, pick up orings made for your co2 tank and those should be the right size.

Yep^^^
In fact Spyder, Pirhana, JT(some, not all) Rebel, and a few other Spyder clones orings can all be replaced with your standard co2 tank orings, hammer, bolt and valve (stock one) and some of the ball detents are interchangeable as well.