This mount from NcStarclamps securely onto the trigger guard of your Beretta 92/M9 handgun and it provides a Weaver type rail for attaching flashlight or laser. It is made of aluminum.
Specifications:

Type	Accessory Rail
Model	Trigger Guard Mount
Dimensions	3.2" L
Size	1.1 oz
Material	Aluminum
Action
Trigger
Safety
Thread Pattern
Finish	Black
Bolt Type
Hand
Hammer Type
Max Capacity