Where do I get o-rings for my Diana Chaser kit?

[markjs]

Every time I remove the barrel for my Chaser, I tear one of the barrel O-rings. I'm out of spares that came with the kit already, so I don't dare change the barrel again until I have spares.  The best thing about this gun is the ability to convert from pistol to rifle, but as of now I'm stuck in rifle mode for fear of O-ring breakage.

I need to get out and shoot it too. The sights were horribly off, can't hit anything with it so far.

[WobblyHand]

Every time I remove the barrel for my Chaser, I tear one of the barrel O-rings. I'm out of spares that came with the kit already, so I don't dare change the barrel again until I have spares.  The best thing about this gun is the ability to convert from pistol to rifle, but as of now I'm stuck in rifle mode for fear of O-ring breakage.

I need to get out and shoot it too. The sights were horribly off, can't hit anything with it so far.

Maybe someone knows the size, I don't.  I suggest you get a digital caliper and measure the o-ring.  It's likely it is a standard size.  My first digital caliper came from Harbor Freight, I still use it today.  Then you can order the o-rings from Capt O-Ring or the O-Ring Store, or even perhaps in a local hardware store.  They are a LOT cheaper that way.  If it is a relatively small size, a bag of 100 is small money, maybe $6 or $7.  The small o-rings are even cheaper. 

I've also bought o-rings at McMaster-Carr, but their shipping tends to be a little higher these days.  McMaster has one of the world's best online catalogs.  They carry the better stuff, from raw material stock, to screws, drill bits, end mills and lots more.  Been buying from them over 20 years.  They are an industrial supplier.

With airguns, you tend to stock up on o-rings.  I've got bags of a lot of different sizes for my collection.

[Back_Roads]

 A question asked many times, this link gives you some options.
https://www.gatewaytoairguns.org/GTA/index.php?topic=213757.0
 Ebay has full sets alsoo from England.
 www.ebay.com/itm/274662886063