[ES13Raven]

Paintball Central (TheMatrixCenter.com) just wrote me an email back:
"Yes the o-ring kits are made by aardark, no they are not urathane, they are the black buna(sp) ones. They kit has two to three replacement o-rings."

I thought the o-rings WERE urathane? How are these any better than the stock ones if they arn't??
Are the ones at Pevs urathane?

[WhataSpaz]

The o-rings that come standard with the gun are not urathane either. I had a chance to talk to a tech from Airtech at the Gettysburg NPPL. He told me that the buna o-ring kits (Aardvark's & the one at Pev's) "would seal better than the stock ones, making it function better." You can get urathane o-rings to put in but it's alot more expensive.

[The Toyman]

urathane orings are the milky looking ones you use on your tank. I have never seen a urathane oring that was not as stiff as a tank oring. They would not work on any moving parts in any gun because the oring does not have enough give. By the time you got a urathane oring to seal the bolt would be so stiff you couldnt move it. Has anybody else seen a black urathane oring. They are probably Viton orings rather than urathane.

Correct me if I am wrong.

[Paint_hore]

Originally posted by The Toyman
urathane orings are the milky looking ones you use on your tank. I have never seen a urathane oring that was not as stiff as a tank oring. They would not work on any moving parts in any gun because the oring does not have enough give. By the time you got a urathane oring to seal the bolt would be so stiff you couldnt move it. Has anybody else seen a black urathane oring. They are probably Viton orings rather than urathane.

Correct me if I am wrong.

I have seen plenty of 'spongy' urethane o-rings. I have also seen the stiff kind.
They do have urethane O-ring kits for the Matrix and they are around 25 bucks I believe.
Viton orings are in the gun from the factory. Buna are the replacement ones that Aardvark sells along with the urethane ones. One set is cheaper than the other.

[ES13Raven]

Originally posted by Paint_hore
Viton orings are in the gun from the factory. Buna are the replacement ones that Aardvark sells along with the urethane ones. One set is cheaper than the other.

How well do the Buna o-rings work compared to the urathane?