Tuning FX Impact MKII 2nd stage trigger screw.

[Aland64]

Would anyone happen to know the thread size and length for the Impact trigger 2nd stage grub screw?

I recently picked up a used MKII and the hex socket is stripped out. I can remove the screw with needle nose pliers. I would like to replace it. 

Thanks 

 

[douger]

you could try a little heat id pull the trigger assembly out first they use thread sealer on them sometimes 2mm i believe 

 

[Aland64]

I can remove the screw. That isn't the problem. The 2mm hex socket has been rounded out. I can't make fine adjustments. I need a new grub screw. 

 

[Enkey]

Hi

If it is the screw that I think you are saying, it is a metric 4 (M4)

Regards 

Enkey

EDIT

M5 x 8mm​

B 5mm

C 8,20mm​​​​​​

 

[Aland64]

I will look for that size. Thank you for the help. 

 

[Enkey]

It is a special screw with a ball at the end

 

[Aland64]

I think I saw that somewhere. Thanks. 

I think I'll give FX USA a call. 

 

[douger]

part number is c25 11062 adj screw second stage ,soft just email service at fx usa with part number

 

[Aland64]

Thanks, douger. Really appreciate it. 

I tried calling today but they're closed. I'll send and email asap. 

Cheers. 

 

[biohazardman]

Trigger adjustments;

https://www.airgun101.com/index.php/component/allvideoshare/video/fx-impact-trigger-adjustments-and-overview?Itemid=381

Impact diagram;

https://fxairguns.com/wp-content/uploads/2021/04/Impact-MkII-1.pdf

Get parts from FX;

https://www.fxairguns-usa.com/parts-order/

Or;

https://spares.bagnallandkirkwood.co.uk/fx/fx-impact-air-rifle-spare-parts/

 

[Aland64]

Thanks for all the replies. I sent a parts request to FX.

If anyone is interested the screw is called a "ball-point set screw". McMaster-Carr has them as well. 

 

[bigHUN]

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