Many features in one Ar15 Muzzle Device!
-Flash Cone, can thread on and off the brake and direct flash and muzzle blast forward.
-Muzzle Brake, also has thread protector to cover external threads.
-AR 15 Solvent Trap Adapter for sale, externally threaded for oil filters & other containers to avoid a mess when cleaning your barrel.
1/2-28 Internal Threads
13/16-16 External Threads