The Madbull FH G5 Flash Hider CW fits on 14mm POSITIVE CW threaded barrels. Full metal construction by Madbull with that awesome G5 style look. For M4 airsoft guns with the CW threads. Good for G&P and some odd M4 style guns. This is not the CCW style, as it will only fit a few guns. This is a rare flash hider and is only for those with CW style threading. Do not purchase this for general airsoft guns.Fits on rare AEGs that are CW (1% of them).