The Madbull Noveske Low Profile Switch Gas Block isn’t made to suit inside rail interface systems. The front of the gas block is to stay accessible therefore the user can adjust the quantity of pressure that’s routed backwards to cycle the bolt. Obviously this feature is merely made to imitate the important product and serves no function for airsoft but it’s a singular feature that displays Madbull’s attention to detail in making an accurate replica. Similar Gas blocks became popular and may be seen on numerous precision and civilian style AR-15 rifles, its another good way to customize your AEG to form it your own. This gas block features alittle but visible Noveske logo on the front, it adds alittle little bit of flare for those with excellent attention to detail.