Need help with some movie guns

[G36-UK]

Sorry to ask another stupid question, but I need help identifying a few movie guns.

In The Terminator, there's a dream sequence where Reese encounters a Terminator blasting it's way through a human refuge (about five minutes after the West Highland Police Station gunfight). I know that his rifle and those of the Resistance fighters are Valmet M82 bullpup rifles, but I was hoping someone could identify the large machinegun that the Terminator uses. It reminds me of a dressed-up Browning M2, but it seems too light.

A friend on another forum is making a model of the Franco Columbu Terminator, and wants to know the exact gun so he can be precise with the details. Here's a quote from him about the gun (I didn't know what he meant):

I also want to know what that articulated trigger/bolt release mechanism is on the side that constantly twitches when the Terminator palms the trigger grip. Any ideas on a realword image source for that part?

Also, I am a fan of the sci-fi B-movie A.P.E.X., and there's one thing bugging me. As far as I know, three of the four soldiers use Ruger Mini-14 Muzzelite rifles. If anyone's seen this movie (can't post screens, no DVD, and the DVD-ROM's wonky), can they tell me what the pistol and Shotgun used by Sheppard are called?

Thanks in advance.

 

[50 Shooter]

I think it was a Lewis Gun that the Terminator was holding in the sceen you're thinking about. http://members.aol.com/panzersgt/smallarm/lewis.html

I think they modified it with a spade type grip for the movie.

 

[beerslurpy]

I was under the impression it was just a big tube.

 

[G36-UK]

Thanks. Any idea what he means by the articulated bolt/trigger release that he was talking about?

 

[50 Shooter]

I think I have the DVD laying around here somewhere, I'll pop it in and take a look. Maybe I can get a better idea of what he's thinking about.