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b3-1 main spring

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jusepy82 View Drop Down
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    Posted: 13 Aug 2023 at 10:25am
Hey guys ,
I have been doing alot of googling but cant seem to find the length of a mainspring for a b3-1 under lever air rifle.
The reason I ask is because I brought a kit for the gun and the spring that came with the kit is waaaay longer than the one that was inside the gun.
Now I know you are going to say make the spring the same size as the standard one, but I dont know if it has fiddled with before as it looks very rough and is bent slightly.

I have found a few sites and some information but nothing set in concrete. Another avenue would be to email youngs where I purchased the spring from , which I shall do tommorow.

Anyways thanks guys.

As long as there is lead in the air...there is hope.
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kruzaroad View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote kruzaroad Quote  Post ReplyReply Direct Link To This Post Posted: 13 Aug 2023 at 10:54am

Does it look like this, if so this spring from b3 is OK.
https://www.pyramydair.com/blog/2018/04/chinese-b3-underlever-part-5/

Also this descussion on them may be useful, it tells how to measure length off the gun itself.


https://www.tapatalk.com/groups/yellow/b3-1-22-b4-1-22-b3-1-177-stronger-main-spring-t427931.html



If it looks right get ahold of hasting springs, have a talk to them. They will probly ask you to send it down and make a new one. Stronger or weaker if you want.

Edited by kruzaroad - 13 Aug 2023 at 10:59am
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Billbobnz View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Billbobnz Quote  Post ReplyReply Direct Link To This Post Posted: 13 Aug 2023 at 10:56am
I don't know if this is a B3 but this is my Chinese underlever

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jusepy82 View Drop Down
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Post Options Post Options   Thanks (0) Thanks(0)   Quote jusepy82 Quote  Post ReplyReply Direct Link To This Post Posted: 13 Aug 2023 at 12:22pm
I have a spring that came in the kit I brought for the b3-1. 
That looks like a b3 air rifle billbobbz.
Thanks everybody for the information gathered.

As long as there is lead in the air...there is hope.
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