Just got vol.8 no1 of 'Glock Autopistols' and they feature a new locking system to deactivate it much like the Taurus Springfield etc... locks. the lock is located in the tunnel in the back of the grip and connects to the bottom of the trigger mechanism housing. the key is cylindrical at about 1.7 mm in length. The article doesnt mention when it will be installed in new pistols nor if it can be installed on older models (probably could though). Just thought Id share.
-D
Glock 31
Taurus PT92
-D
Glock 31
Taurus PT92