Carlson's Choke Tubes and Carbon Cleaner offers a safe, non-flammable, non-hazardous and biodegradable solution for cleaning carbon and plastic wad fouling from choke tubes and semi-automatic shotgun gas systems. This versatile cleaner is also effective for AR-15 and other rifle bolt assemblies. Designed for fast results, it completes the job in 15 min or less. Supplied in a 7 oz jar, it provides an efficient and eco-friendly option for maintaining your firearms.