Calico M960
From Memory Alpha, the free Star Trek reference
The Calico M960 was a submachine gun used in the 20th and 21st centuries.
In 2063, Lily Sloane used an M960 to defend the Phoenix silo in Bozeman, Montana when Jean-Luc Picard and Data were in the facility. The weapon had a high rate of fire should it have been needed to stop a humanoid, but was completely ineffective against Data's android body. (Star Trek: First Contact)
