Tuning Evol mini22 Oring probe size?

[WillM]

Brand new gun from AOA, got it home and air leak at breach; no o ring on probe. AOA trying to help but one guy says that gun has a breech o ring, another says he’s not sure. They are sending me an o ring by mail but I’d like to go to Grainger and buy one today so I can shoot. 
AAA website has diagrams of 30 cal not 22.. They don’t answer phone or return my messages. All I want is to shoot my gun. Does anyone know which o ring and size I need?

 

[Peskådot671]

Second to the last post by Arzrover. This is the only info I could find so far.

.22cal bolt probe o-ring: #005, 90 D polyurethane.

https://www.airgunnation.com/topic/aaa-evol-oring-sizes/

 

[WillM]

Thanks so much for the heads up! AOA is sending me the only o-ring they have for the Mini22 but I’m not sure it will be the right one; they’re very helpful but their repair guy who is the one who knows this gun is out this week.

Pretty disappointed that AAA couldn’t even get me this simple information. Now I hope Grainger has them in stock..

Thanks again: your Google fu is way better than mine.

 

[Peskådot671]

No problem at all. I'm happy to help. I have an Evol 30 and I wish there was more info out from AAA.

 

[Airgun-hobbyist]

https://www.theoringstore.com/store/index.php?main_page=index&cPath=367_459_458

Is it a clear urethane o-ring? Pretty sure it is on the .30. Something Grainger won't likely have. I'd search the list of sizes for the whole gun and buy them all just to have them.

 

[Elbowgrease]

Here is a pic. I'm sure you could pick one up at a hardware store, or even a radio controlled car shop. I did take a look at my o-ring sets from harbor freight. Looks like those will work as well. In any case you should be able to replace it rather easy. Downside is your going to buy a pack or few of rings on your quest.

 

[Airgun-hobbyist]

Here is a pic. I'm sure you could pick one up at a hardware store, or even a radio controlled car shop. I did take a look at my o-ring sets from harbor freight. Looks like those will work as well. In any case you should be able to replace it rather easy. Downside is your going to buy a pack or few of rings on your quest.

These are actually urethane molded O-rings with a different compound. It is actually harder and more durable than a regular Buna o-ring that you will get from any hardware store.

Buy them from theoringstore.com link I provided above.

 

[Elbowgrease]

Good to know. The o-ring is rather soft/rubber-like.