RT on/off in a classic valve

[Bassaro]

Hey guys I have read threads recently that talked about putting a RT on/off in a classic valve. Who here has done this and does it make that much of a difference? I assume no modifications are needed and it is a drop in mod, is that correct. I have a mini mag with a classic valve (currently running for classic MOTM) and a rt on/off out of my x-valve that was replaced with a ULT...I see a equation adding up.

[skyless]

I dont have any experience yet with an rt on/off in a classic but im in the process of doing it.
From what i have read, the rt on/off will drop right in, and make the trigger pull half the weight or so. YOu can also put a quad o-ring in there with a .750 classic on/off pin (instead of the .765 rt pin) to make it a bit lighter pull. This is just what i have researched so far, so anyone feel free to correct me. Also you will not get any bounce or responce using a classic valve even with the rt on/off. hope this helps

[turbo chicken]

it makes the pull lighter... yes... easier to short stroke yes ...

i prefer the snappiness of a classic personally...

try purchasing a few regular on off pins... use sand paper and sand off a little off the bottom of the pin... you can get the pull pretty lighter by doing this and still have some snappiness... alway's save your original pin though for when you have issues and need to trouble shoot.

[xero28]

Worked just fine for me. I was using a quad o-ring with mine and found it to lighten the pull a bit as well as make the pull a bit shorter, not by much though. I didn't have any problems with short-stroking as I recall. I was using the normal .750 pin, but found some issues when I put the valve in my MicroMag, tolerance issues I think. I say go for it if you've got it laying around, it won't hurt anything at all. Good luck.

[Bassaro]

Well I just got home from work and threw the rt on/off in the classic valve. If only I had air!!! Thanks for all the help thus far guys.I am going to give it a shot. Would still like to hear a couple more success stories though. As far as short stroking goes...it is what it is. You have to learn to fire every mech differently in terms of trigger pull anyway. Cockers are about the pull mags are about the release and tippmanns can be shot by 5 year olds.

[Spider-TW]

I ran one in a pneumag for a couple of years and it was very good.

I found the quad oring a little more sensitive to lube when I moved the whole valve to a CO2 minimag. The sealing surface on the quad was about .02 inches lower, so the pin lengths or shims need to be adjusted to keep the on/off flowing well (I used the 0.72[8] pin). The valve recharge dropped badly with the .750 pin and the quad. The shorter pin (0.71[2]) worked, but just barely caught the bolt.

[athomas]

I was using the normal .750 pin, but found some issues when I put the valve in my MicroMag, tolerance issues I think.

The micromag requires a shorter pin to function the same as a regular mag.

As Spyder-TW mentioned, the quad oring will make the pin less prone to sticking and thus more responsive but it moves the sealing point down so a shorter pin is needed (or shims between the on-off halves).

[Barsse]

I have a classic valve with RT on/off, shoots great, don't think I've ever short-stroked it, and it almost seems like it is quieter than regular.

- Barsse.

[flyingpootang]

I use a .750 pin and the standard o-rings in all of mine and have no problems.

[DamianTC]

wow I upgraded my x-valve mag with a ULT about 4 months ago and the RT on/off just been sitting on the shelf.. I'll throw that in my cassic mag tonight. never knew that would do anything, thanks for the info!

[garbageman705]

I did the quad job with a RT on off in my classic valve. Made the trigger pull really short. You have to make sure to let the trigger go all the way forward between shots though. Mine was easy to short stroke until I got the hang of it.

[Bassaro]

OK guys I have to confess I have no idea what "quad o-ring" means. Can someone break it down into simplton terms for myself.

[MANN]

It is a type of oring. A standard AGD am/mm on/off uses a teflon oring on the top middle of the on/off pin. AGD later came out with using a urethane oring there for rt valves. This oring provided less friction than the teflon one, but still too much. they then introduced what is called a quad oring. (it has 4 sealing points), and gives less friction of any of the other types. If you took a cross section of the oring it would look like an X , and therefore showing the 4 points of sealing.

[Bassaro]

Awsome thankyou MANN. So let me get this sraight, the quad o-ring would replace the two o-rings under the on/off inside the valve? And that would work under the rt on/off? Or the stock on/off? Can I buy the quad o-ring in agd store on the website?

[xero28]

This is what the o-ring looks like (image is from AGD's website). It does not replace both o-rings, just the smaller white teflon one that fits inside the larger o-ring. Hit up Mann on his "super sale", I think he would still have a few left over.