I'm thinking real seriously of the following.
The Beretta CX4 9mm carbine with the following:
1. Sparc II red dot sight.
2. A dozen magazines (eventually).
3. 124gr. Plus P ammo.
4. MOLLE vest as a magazine carrier platform.
5. one of these three mag pouches.
http://www.tuffproducts.com/Tuff_Original_5_Inline_p/7065.htmhttp://www.tuffproducts.com/TUFF_6_Inline_Magazines_Pouch_p/7066.htmOr this one
http://www.tuffproducts.com/TUFF_Original_8_InLine_p/7068.htm