What is this shotgun attachment?

This pic is from Eric Rudolphs proceedings today.

It’s obvious its a shotgun but what is the attachment below the end of the barrel?

Looks like a torch light to me.

It’s a light, probably a Surefire brand flashlight.

Possibly one of these numbers:


Thanks for the responses. Looks like it to me too.

What boggles me is the prices. They are obscene.

Torch, flashlight… torchlight… you Yanks are spoilling my British English language education!!! :smiley: