Mk18 mod 1 rail moving

[Matt.2504]

How do I stop my mk18 mod 1 rail from wobbling side to side?

 

[Matt.2504]

Forgot to say; trying to attach it to a Cyma 097

[Chev Chelios]

Is it a copy of this? https://danieldefense.com/mk18-risii-fde.html 

 

Without seeing it my first thought is to add some barrel shims before you torque the barrel nut.

 

Example of barrel shims (don't buy them they are exorbitantly priced for what they are) https://www.fire-support.co.uk/product/angrygun-barrel-nut-shimswashers-includes-05mm-x-5pcs-and-1mm-x-5pcs

 

If its not chuck us up a few photos. 

[Matt.2504]

Yeah it’s that one; I’ll look into buying some shims - hopefully cheaper than the ones you linked. Thank you very much. 

[AlphaBear]

Try the sales forums and people used to sell them all the time! 

[JinxDuh]

You can do the same thing with key rings too. It’s how I got my tippmann when I had it to accept a DD rail and not wobble!