GG&G M14/M1A Chamber Cleaning Tool The rugged poly universal joint allows you the ability to easily get into the proper area for thorough chamber cleaning. The chamber brush is 3" long, .490 in diameter and manufactured from phosphor bronze. The overall length of the rifle chamber cleaning tool is approximately 15.00 inches and weighs only 5.45 ounces. The jag is precision machined from 6061 T6 aluminum and slotted 2" inches deep to accept a cleaning patch. The shaft of the Chamber Cleaning Tool is steel with an ergonomic rubber handle.