AAA EVOL oring sizes

[Dairyboy]

Well while I'm waiting for more time to play with my EVOL when it isn't dark and below freezing I want to see if people know of an oring list for the EVOL. I'd like to have extras for all my airguns just in case and would like some for this gun. I have a few spares of the probe oring but want some for the rest of the gun. Thanks for your help guys!

 

[yenniedn]

Check with @mtnGhost - he said he had to replace all of the orings on his Evol previously...

 

[Dairyboy]

I did contact him thanks! Once I figure out what's what I'm gonna try to compile the list. There's not many but not sure on everyone.

 

[Arzrover]

Seems like @Slayer would be the one to contact .... since he makes them.....

Bob

 

[yenniedn]

It's unfortunate there's only like 5 people who own these Evols so there's not a big pool of resources to draw from

 

[mtnGhost]

• -117 B70 reg body
• -122 B70 reg body
• -8 polyurethane duro 90 (reg piston, .30cal pellet probe)
• 10x2mm B70 reg gauge seals (slightly larger than factory spec, but more reliable)
• I can't remember the rest

 

[ctshooter]

Anyone know what the size for the probe o-ring is in .22? That one seems to get torn up frequently. 

Also - #121 B70 for the fill end of the air tube. 

 

[Arzrover]

005 in 90 D polyurethane for the 22 probe.

Bob

 

[Dairyboy]

Great info guys! Thanks

 

[AncientSword]

Anyone know the oring size for the check valve?

 

[Peskådot671]

Anyone know the oring size for the check valve?

-04, Buna 70

If you go to American Air Arms main website, there's some updated schematics for the Evol.

https://americanairarms.com/technical/manuals/

 

[ribbeschoer]

005 in 90 D polyurethane for the 22 probe.

Bob

Does anyone knows where I can order these o-rings? ( maybe the URL ) I am having a little trouble finding them.

 

[Arzrover]

https://www.theoringstore.com

https://www.theoringstore.com/store/index.php?main_page=product_info&cPath=367_1322_1327&products_id=27546

I've had very good service from these guys and their products are top notch.

Bob

 

[ribbeschoer]

Thank you very much Bob! I will place the order directly. 

 

[jwrabbit123]

HI MTN Ghost uses a EVOL 30 cal , I asked about the .22 caliber MINI . are you saying the reg tube and gage orings all same size and only difference is the probe oring is smaller cause it is ,22 ok , I amgetting a used EVOL I bought from here and I wanted to have plenty of every oring for this gun . I already got orings for the EVOL 30 cal . so do you guys think only different oring between the EVOL 30 and the EVOL mini .22 is .005 buna 90 for probe?

 

[Dairyboy]

Correct that should be the only difference in orings between the .22 and .30.

 

[Arzrover]

JW... Buna will tear easily compared to cast urethane. The probe oring should be a 90 D, cast urethane 005. The magazine is the culprit in this case. Oring has a tough job jamming through the magazine. I went through several before finally getting the urethane ones. None since.

The other orings might be fine in Buna. I like Viton, myself. It's maybe not as good in extreme cold but better in most other aspects.

Bob