I got turned on to TYR Tactical by a recent post on soldiersystems.net. Their Machine Gunners Assault Pack is an impressive piece of innovation.
I'm not sure how practical this thing would be linked up to a full-size M240, but it could pair nicely with lighter assault-style MGs such as the M249, MK46 and MK48.
The MICO is outfitted with custom lightweight feed [chute], cover and weapons feed attachment. Holds 500 rounds and an additional 75 rounds in the feed [chute].
The idea of having 575 rounds at-the-ready is attractive but also painful since

But then there's the price tag -- $3995.95?!! They've gotta be kidding. Maybe $2150, but not 4K. This is a really interesting design and I'm sure it's nice quality, but I can't believe anyone would lay down that kind of dough for a pack.
Maybe I'm wrong. Has anyone seen one of these or anything like it in their travels?