Gyrojet: The First Handheld Rocket Gun Was an American Legend Here’s What You Need to Know: A handful of Gyrojet weapons saw combat in Southeast Asia with the U.S. military’s secretive Studies ...

The U.S. Army tested the gun in December and has not yet made a report. However, an authoritative technical publication, the American Rifleman, reports that Gyrojet is wanting in several respects ...

Nonetheless, the justices in an unanimous decision threw out Mexico’s lawsuit against the U.S. gun industry, ruling that federal law shields gun makers from nearly all liability.