Valve Spring Retainers ID
Hello
I have a Gunpower stealth Valve Spring Retainer (micro-meter)which i want to convert to a standard Talon one but i don’t know the diameter
Can anyone please tell me how big the transfer port has to be to work proper with a 12 “barrel setup?
currently the transfer port is 0.4mm
Thanks
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Basically, you can open up the hole to any size as long as it is no bigger than the ID of your valve spring.
But this can take your rifle over the 12 FPE Limit, so don’t do it unless you have an FAC
Dave
You can make it just large enough it will still hold the spring.
Measure your spring and make the hole smaller then that.
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Thanks for the advice
Don’t worry i have FAC but for air rifles is no need in Romania the only difference from USA is that we can’t hunt with them
I need more power for long range shooting 50-70m