M.B.A. 13mm Gyrojet Pistol:
“There have been virtually no significant developments in hand firearms for very many years, and it is, therefore, arguable that these arms have reached their full development. In 1960, however, two Americans, Robert Mainhardt and Art Biehl, found this so hard to accept that they decided to attempt a breakthrough…The weapon lacked both power and accuracy and was not a success.”
We can make it better, we have the technology.