Mystery onn/off valve

[GEE TEE]

I'm busy working on another pumpmag for a buddy. I found his donor mag was leaking and stripped the on/off out to swap seals.

I discovered it has an unusual on/off fitted, which uses 2 sets of o-rings to seal the pin. Any idea what make it is, and are they any better than stock AGD parts?

It was installed with (from left to right) the steel packing washer on top, o-ring seals, main body (holes towards top) and finally seals at bottom

[Ando]

Reactor valve

[BigEvil]

Reactor valve

Yup. Throw it out and use an RT on/off.

[Ando]

Yup. Throw it out and use an RT on/off.

Booo...I like mine. It does lower the pull a bit. Not as much at a RT but it's better then nothing.

[GEE TEE]

So verdict is possibly better than stock on/off but not as good as some?

Remember this is being built as a pump so RT action not really required

[BigEvil]

So verdict is possibly better than stock on/off but not as good as some?

Remember this is being built as a pump so RT action not really required

Well, the RT on/off will give you a much lighter trigger pull than either....I use it on one of mine.. and a Centerflag on/off on the other.

[spece108]

My last used mag I bought came with one in it. If it works great. If it leaks, it uses standard parts kit o-rings. It was originally billed as slowing down the freezing up of the old stock on/off with co2. Doesn't react like a z-valve on/off (glad to see some one is running with that concept again).

Still a new one is like 39 bucks or so and some of these are running fine after 12-15 years. The only real drawback is how that washer piece on the bottom likes to fall out when you take it apart.

[GEE TEE]

Thanks for the extra info

I get your point about RT trigger pull but I don't feel it's that heavy on the pump

Is the RT valve a straight drop in replacement on the level 7?

[DevilMan]

hmmm... I've never paid attention far enough to notice the one that I have that has that damn metal bottom that keeps falling out...

I'll look and compare notes.. I swear I've seen so many different types of on/offs... maybe I'll try and get a pic of the different ones I have and at least get em ID'd.

DM

[athomas]

Thanks for the extra info

I get your point about RT trigger pull but I don't feel it's that heavy on the pump

Is the RT valve a straight drop in replacement on the level 7?

The retro valve is a direct drop in replacement. The RT valve is not. The RT valve is the smaller diameter RT classic that uses the banjo bolt.

The retro valve offers no advantage on a pump mag.

[GEE TEE]

Thanks for that confirmation

If I can't get the reactor to seal in the level 7 I'll revert to stock on/off

Well, the RT on/off will give you a much lighter trigger pull than either....I use it on one of mine.. and a Centerflag on/off on the other.

What Automag valve are you running on the pumps.. bearing in mind athomas's comments above regarding RT/Retro valve compatability?

[Menace_AO]

For a pump you don't need anything beyond a classic valve.

BigEvil is correct about the RT on/off. It drops right into the classic valve, even though it was designed for the newer valves. Picked one up from Tuna at Tunaball and it turns your trigger from 'nice' into 'sweet butter'.

Basically cuts your trigger pull from about 8 lbs to 4 lbs or so. Less trigger weight equals smoother pull, which translates to a less tendency to jerk the marker off target. In a pump, trigger pull is very important, indeed.

I was skeptical at first, but had so much fun with it am planning on getting another.

So sell that 'reactor' on/off, get yourself a proper TK-designed upgrade, and don't look back.

Except to check for would-be bad guys.

[athomas]

I like the retro on-off in a classic valve. They work really well and are a drop in replacement for the on-off assembly. As mentioned, it reduces the trigger pull force by 50%.

[GEE TEE]

Food for thought

Thanks again for the feedback