The Gas Buster® charging handle with Combat latch is a safety device with ergonomic design that diverts harmful gases, oil and dirt particles away from the shooter.  This is a PRi Patented product.  Safety approved & used by the US Marine corps.  This product doesn't work as well with left hand shooters because of the gas porting properties but works better than a standard charging Handle.  Handle is constructed of T6 7075 hard coat anodized aluminum and is available with 2 colors; black and FDE.