Long ago I saw a photo of a group of South American SF guys posing for a photo shoot. The middle soldier was carrying a shotgun that had the same shape and look as a colt commando but was obviously bigger as it had a larger mag and barrel.
Does anyone know of or where I can get some info on a weapon like this.

South Africa has produced a few different combat shotguns. They are the MAG-7, Neostead and Striker. From the discription you gave it sounds like it might have been an AA-12, though, which has similar lines to the Armalite system.

More info here:

http://world.guns.ru/shotgun/sh20-e.htm

Cheers for the link, have taken a look and the weapon that resembles what I saw the closest was either a Franchi SPAS 15 or a USAS-12 but if I had to chose, I'd say a Franchi SPAS 15.

Where is 5.56X45? He'll have the answer for you.

Wow that MAG-7 is one hell of an impressive looking shotty...

The USAS-12 is the automatic shotgun which fits that description I would think.

Originally Posted by sven hassell

The USAS-12 is the automatic shotgun which fits that description I would think.

This one?
http://world.guns.ru/shotgun/sh16-e.htm

Originally Posted by AussieNick

Where is 5.56X45? He'll have the answer for you.

Sorry, I haven't checked out this post.

I can't answer the question if I don't see the photo. If said photo isn't available a good description would do.

It's either a
USAS-12 shotgun

http://world.guns.ru/shotgun/sh16-e.htm
Atchisson AA-12

http://world.guns.ru/shotgun/sh29-e.htm

I'm quite amazed that I'm veiwed as the weapon expert here.

I'm quite amazed that I'm veiwed as the weapon expert here.

Well, you seem to give the most reasonable opinions on weapons here, and seem to have a broad ranged knowledge (compared to myself for example, who would know very little if I'm not qualified on it).

I guess the knowledge comes with being a cop, part time gun smith, and former ground pounder.