Quick Question about an AA reg piston on back of a mag

[Ir0nExpress]

I recently saw this trick on MCB, did it to my own mag and it shoots! Lighter too!

However...this reg was off of a Raptor Rex tank reg...did i just make my gun HPA only since the reg was designed for a N2 tank? Or can I still funnel c02 into it every now and then?

Thanks for answering

I also added a Air America SS piston housing to the back half of the valve. Where these made of Automags or for the AA reg that used AIR regulator guts? Either way, it works and weighs less than half of the stock valve back.

[ManInBlack]

I've thought about doing that. The design is nearly identical. I would stick with HPA though.

[Spider-TW]

There's no pin in the reg back to lock into the rail.

I can't remember what the hole pattern is on that AA reg. Does it have one, more or a slot? I have one and have had it in my hand, but...

[Shane-O-Mac]

Works fine on Co2 or HPA. But if you dont use a drop or 2 of Blue loc-tite, to keep it from rotating around while shooting you will have issues. And yes it will do that. Make sure you use the Mag piston, not the AA one, as the safety blow off in the piston is much higher on the AA piston.

[Ir0nExpress]

Ahh I didn't know about the piston part! Thank you!

As for the loctite, I got a tourney lock from some leftovers in a store a while back, glad i bought them

Thanks for the answers, this is definitely one of those upgrades that people should to do their mags if they can.

[maniacmechanic]

Works fine on Co2 or HPA. But if you dont use a drop or 2 of Blue loc-tite, to keep it from rotating around while shooting you will have issues. And yes it will do that. Make sure you use the Mag piston, not the AA one, as the safety blow off in the piston is much higher on the AA piston.

Iron , I may be wrong but , I think he was refering to where the AA screws into the front half of the valve , due to the fact there is no locating pin

[cyclic]

Could I take my stock one and turn it down behind the z-pin to get a similar effect? Or possibly even flute the exterior similar to a revolvers cylinder? Can this be done safely? Just how thick do I need to leave it to support the adjuster threads?

[Shane-O-Mac]

Iron , I may be wrong but , I think he was refering to where the AA screws into the front half of the valve , due to the fact there is no locating pin

That is correct. The rear body half will rotate as you shoot, I know from experience. When it does, it will raise the velocity.

Cyclic: Yes you can, but if you dont know how thick to keep it, I suggest you have an airsmith do the fluting or turning.

[cyclic]

Just need the minimum thickness needed to retain the threading with a 900 psi head pressure. Not rocket science, just need someone who knows the propeties of stainless and the thread engagement requirements. I can get it machined anywhere, just need to know how thick I need. I'm tempted to just measure out an AA end and give it a little extra for safety.

[Shane-O-Mac]

Just need the minimum thickness needed to retain the threading with a 900 psi head pressure. Not rocket science, just need someone who knows the propeties of stainless and the thread engagement requirements. I can get it machined anywhere, just need to know how thick I need. I'm tempted to just measure out an AA end and give it a little extra for safety.

No need to add more than an AA piston housing though. Measure that and your god to go. I would suggest warped airsmithing or Rainman on here for the job. Both of them should be able to do it quickly. But you can find AA regs dirt cheap, so its cheaper to buy one of them and use the piston housing for it. And if you really want a cool part, buy a AA Black Ice, it has an aluminum housing..............

[cyclic]

I was thinking about cutting mine. Basically flutting it similar to a revolvers cylinder. Use a ball end mill and either 5 or 6 flutes. Should allow me to keep the z-pin, and give it a much different look.

So anyone with a AA regulator body that can tell me the outer diameter on the thinned down section? Doesn't need to be to the .001 but close would be nice.