http://www.recoilweb.com/featured-products-of-issue-25-95465.html

Muzzle brake or flash hider? It’s a struggle. Can’t decide? The C3 Hybrid Comp looks like an A2 birdcage at first glance, but on closer inspection you’ll notice the threads for the included front baffle. Without the baffle, the C3 offers slightly less flash reduction than you’d expect out of an A2. Use the included tool to screw in the vented plate and you’ve got a flat shooting rifle for use when concussion isn’t a concern. Adding the plate doesn’t affect C3’s size, making it a very compact hider/brake.

For .300 Blackout 5/8″ 24 tpi