An evolution of the M1, the M9A1 was part of the "Bazooka"/"Stovepipe" line of shoulder fired anti-tank rocket launchers. The first of its kind, the Bazooka was a massive shift in how infantry dealt with tanks and armored vehicles and replaced the then underpowered anti-tank rifles of the inter-war era with a shaped charged rocket that could cope with the armor plating of the day. While other designs have come about, the basic principles are still in use today, and "bazooka" is still a recognized nickname for the entire class of weapon. The M9A1 was introduced in 1944 and would see America through the close of World War II. Constructed from two sections of steel tubing, the launcher could be broken down for storage and transport, with a flip-out optical sight for aiming and an integral magneto in lieu of an ignition battery. Both halves are marked "M9A1" near the junction point, with a wire reinforced chamber and the serial number near the breech. The "CB" prefix is associated with the Cheney-Bigelow Wire Works of Springfield, a major producer of the Bazooka during the war.

Very fine, with 80% of the green paint finish, showing mild wear and handling overall. The ignition system is untested, and the optics are in fine order. NOTE: This Destructive Device is a National Firearms Act (NFA), fully transferable Class 3, which is registered with the Bureau of Alcohol, Tobacco, Firearms and Explosives, (BATFE) under the provisions of 18 U.S.C. Chapter 44 and 27 CFR part 478.