BudsGunShop.com - Muzzle brake

Robert, this model is Threaded 5/8 x 24 at the muzzle. cheers and stay safe! I recommend the Harvester Big bore : budsgunshop.com/product_info.php/products_id/712011495/sil+harvester+big+bore+58+x+24+muzzle+brake

This has a 5/8×24 thread pitch. So any 5/8×24 tpi muzzle brake will work. I really like the ultradyne Pegasus muzzle brake, I have one on my Savage 10 ba stealth in 6.5 creedmoor. You'd want the ultradyne Pegasus in 308, Wich also works for 300 win mag. Midway USA has them for $108, little pricey but well worth it. Hope this helps.

Robert, any muzzle brake for a 5/8 x 24 threaded muzzle will work. Have a great day!