Where can I find a 6.5 Grendel Muzzle Brake/Flash Hider? The threads are 9/16 x 24, im almost positve. The only one i found was at Brownells it was a Vortex but it said it was for a 6.8/30 Cal but the threads were 9/16x24 so i would think it would work unless its LH but it didnt say. I know Alexander Arms/Sabre Defense does but they have absolutly nothing in stock or it will take months to get it. I dont want to wait months and not be able to shoot my new build over a flash hider! Is there any other sites that make them or what companies make them that size for a Grendel.