The Venom Flash Hider nearly eliminates 100 percent of your muzzle flash and quickly disperses the burning gases exploding from the barrel. The four prongs on the end of the brake are designed to protect the muzzle crown. This model is compatible with your AR15
Specifications:

Type	Flash Hider
Model	AR Style
Dimensions
Size	223 Remington/5.56 NATO
Material	Steel
Action
Trigger
Safety
Thread Pattern	.5x28 tpi
Finish	Black
Bolt Type
Hand
Hammer Type
Max Capacity