Updated with pic. I saw a magazine holder in a video that attaches to the lower receiver right next to the magazine where you can have an extra mag ready. However I cannot locate a brand name. Would anyone know of the brand name or name of the holder. Thanks
Thanks for the info, I found the redi-mag online but I cannot find the one below.
As you can see it has a MagPul BAD added but it looks like the RediMag is attached some other way and it appeares to be more skeletonized.

Are you sure it attaches to the lower? I think Sig makes some mags that clip to each other where you can have one in the gun and one cliped to that mag ready and waiting outside the gun.

Its called a redi mag. We sell them. I can't remember the manufacturer, I'm in my truck right now. Sappertitan got one not long ago.

These are the Sigs. There is connector that links the two together.
http://www.sigsauer.com/SigStore/ShowProductDetails.aspx?categoryid=27&productid=229

I have heard those sigs are junk.

Here is the link

http://www.redi-mag.com/index.php?l=product_detail&p=4

Why not just get a mag coupler, it attaches 2 AR15 mags together so you don't have to do anything to your gun.

Something like this
http://ep.yimg.com/ca/I/policestuff_2149_178066259

You want more ammo? Don't care about weight?

Skip the mags all together...

http://www.dndguns.com/shrike.htm

Very nice beech96w,

I found it at http://store.a51tactical.com/

But they want more than I can afford right now.

Thanks for the info.

Looks like it was cut out. It also says redimag in the URL.

Love that suppressive fire......

The gun seems to cycle faster with the belt feed, than out of the drum mag.

Why Dance, When You Can Rock N Roll!