Carbine series parts question

I recently acquired a well-cared-for 68 Carbine in the factory Sniper configuration. I am aware the original 68 Carbine valve had some problems with consistency, and I believe (but have not had a chance to chrono test it) that this marker has its original valve. I am wondering if I will need to replace the power tube in order to upgrade to the Pro Carbine valve, should it prove necessary. I am also wondering if the modern ball detents are compatible. Thank you for your response.

Can you post up the serial number? You don't have to give the exact one... but if your S/N is say... 45679, post 45xxx.
Will help determine whether or not you have the CVX valve or not, although I must admit... I forget what the exact cut-off is.

Given the age of the gun... I don't think you'll get a free valve from Tippmann. Might get a cheap one, or a rebuild with a nominal fee... but not free. Worth a shot though?

Ball detents from any of the current guns are the same. 98/A-5/Carbine etc.

Edited by ShortyBP

Hmmm... never saw that before. Might be a free deal afterall.

Although I will say... all five of my 68Carbines came with solid brass gas lines (not steel braid) and all five were CVX.

Hmmm... still too tough to call. I had expansion chambers on mine, with the newer style valve. Same setup with the brass tubing on the vertical adapter too. (huge PITA to disassemble)

Even if you were to disassemble and show a picture of the valve itself, I'm not sure if I'd be able to tell them apart (unless it was drastically different, I honestly haven't seen the "old style" valve).

But... if I had to put money down and place a wager... I'd guess that you have the newer CVX valve. Even if this is the case, you'd probably be due for a rebuild anyway.

Gun looks to be in great shape though! Elbow and rear sight look to be in good shape, not chewed up as they tend to get with repeated removal. Re-anno'd would explain the smooth finish. Stainless screws. Is that a stainless replacement rear bolt?

I'd try it and see how it performs first. If it's not up to snuff, perhaps it's worth it to ship it back to Ft Wayne for a valve replacement/rebuild. But if it performs well, you might get a couple years of good use from it before needing to resort to any kind of major rehaul.

If you can pull the valve out and post a picture I can tell you if it's the CVX
valve or the older style. I recently acquired a 68-carbine and pulled the
valve out to notice it was the older style. I then sent mine into Tippmann for
the free valve upgrade. I was the one who wrote that post and I'm quite
certain they'd do the upgrade for you free of charge. Mine was done about 6
months ago.

An easy way to tell the difference between the CVX and the older style is...

the CVX will have only one pin while the older style will have a two pins, one
on each side of the valve.