Abstract: A system and method using superheated steam optionally augmented by oxygen for the reduction of nitrogen oxides present for reducing nitrogen oxides present in a wide variety of organic compounds. The system includes a single reaction vessel, or optionally, multiple reaction vessels in operational communication. Reduction takes place quickly when a steam/oxygen mixture is injected into the reaction vessel or vessels. Reducing additives are metered into the reaction vessel or vessels and/or provide energy input to reduce nitrates to nitrogen. The oxygen, when used, allows for some oxidation of waste by-products and provides an additional offset for thermal requirements of operation.

Abstract: A rail cover may be snapped on or off the side of Picatinny rail mounted to a weapon, such as a rifle. The rail cover protects the user from the teeth of the rail and from heat generated during repeated firing. The rail cover is readily installed or removed from the side, rather than being slipped over the end of the rail, by pressing it onto the rail or by prying it off the rail. The slightly flexible rail cover is preferably made of a polymer to which a rubberizing agent has been added and by forming grooves in its top surface. In addition to improving flexibility, the grooves also improve the user's grip on the rail cover. Locking tabs on the underside of the rail cover, dimensioned to fit in the grooves between adjacent teeth of the Picatinny rail, prevent axial movement of the rail cover when it is installed.