The Trinity Force 308 A2 Flash Hider replicates the flash suppression of the original MIL-SPEC Birdcage A2 Flash Hider, and uses a flat sided base for easy installation.
For your safety, Trinity Force recommends this part be installed by a competent, qualified gunsmith/installer with an understanding of the weapon platform that the part is being installed on. Always make sure the firearm is unloaded and pointed in a safe direction when working.