SMG - 9x19mm NATO - Italy - 850 RPM - The designers of the Spectre M4 went too far in trying to design a "safe" SMG.  The user can actually decock the hammer and fire the Spectre from an extremely long double action trigger pull.  On the plus side was the use of a four-column magazine similar to the Finish Suomi.  This allows for a high magazine capacity without excessive length. D.E. Watters