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Thread pitch should be 18mm X 1mm. Hope this helps

Would this work? It is for 458 Socom/450 Bushmasster Thread is 5/8 X 32. https://www.midwayusa.com/product/944697/ar-stoner-muzzle-brake-5-8-32-thread-ar-15-450-bushmaster-458-socom-matte

I suggest calling CVA and asking what the threads are (I could not find it published ) CVA 770-449-4687

Ben - I would suggest calling CVA at 770-449-4687 and asking them. I'm sure they could tell you the exact thread pattern they use for the muzzle brake on this rifle - and that way you could be certain.

Ben, this rifle has a 25" Fluted Stainless Steel Barrel (416 Grade Stainless Steel) with a 1:20" Twist Rate and The thread is 18mm X 1mm.