Good 'ol a2 flash hider - Radical Firearms A2 Flash Hider

When something works, don't screw it up.

While there are definitely better flash hiders out there, there are a lot more that will perform as good or worse and cost a lot more. For a basic AR build where you just need something practical and affordable to put on the business end your weapon, you really can't beat an A2 bird-cage flash hider. And Radical Firearms is a well established business in the industry, so I have zero reservations ordering from them. Even though it's just a flash hider, it's reassuring to know that if something goes wrong, they have responsive CS that will taker care of you.

As far as performance, it's just as you'd expect. It does a good-enough job of diffusing flash, and a good-enough job of reducing muzzle climb. Doesn't do all that much for recoil, but doesn't hurt, either. All in all, it's a good unit. And at this price, I bought a spare to keep in my parts box just in case.