Air Arms Owners Club

Hi guys
Got a sneaky feeling my transfer port screw on my s400 keeps working loose,every time i test power on gun i have to lower the power,does this screw unscrew itself? Is this normal?
Any ideas how to keep this inplace?
Thanks in advance
Regards
Lee

Spot of thread lock, you will have half an hour to alter the setting before it sets, or screw another grub screw in behind it th lock it in place.

Brooksy wrote:Spot of thread lock, you will have half an hour to alter the setting before it sets, or screw another grub screw in behind it th lock it in place.

Thanks pal,is it usual for this to happen?
Regards