Steel construction flash hider / brake.  Also has direct mount that doesn’t need to be timed, so no more crush washers or peel washers. Does not require any special tools.  This has been manufactured for us by a very popular US Manufacturing shop.

This comp tested out at about .4 lumens, compared to bare muzzle is 10,000 +..

1/2×28 TPI Overall length 2.2″
Made for 5.56 Caliber Barrels
Outside Diameter: 0.86”
Weight: 0.156lbs