Cap Set Diffration Gratings?

[Spyderz20x6]

Does anybody know of any cap set diffraction gratings that will fit the AixiZ module and work with high powered lasers?
The cheap dollar store ones suck with high powered lasers :'(

 

[AusLasersSuck]

I got some from dragonlasers, yea those dollar store one's melt with our hardcore 300mw's.