40% lighter than the original, yet retains 98% effectiveness. The 7075 aluminum tubing for the baton is custom fabricated to ASP specifications. This is the same alloy that is used in the receiver of the M16. It is extremelystrong. The striking surface of the Airweight is 4140 steel tubing. In addition to being noticeably lighter, ASP Airweights move more rapidly than steel batons. They allow a faster “bridge” between strikes. I carry a 21″ in my EDC Bag. More info at ASP-Net.com. $65 at First Responder Products.