Last summer I got a SUPER deal on a as new Blackhawk Omega Phalanx Homeland Security Vest ;
http://www.blackhawk.com/product/Omega-Phalanx-Homeland-Security-Vest,264,85.htm
Do a search and they can be found for less then $135 and are a bargin at that price.
Mine holds 20 rds. of 12ga. in pocketed loops , 2-4 AR mags or 2 AK/M1a mags , 2 hi-cap pistol mags , and can hold {in velcro pockets} handcuffs , mag-lite , folding knife ,etc. etc. ---- plus you can add to it with the STRIKE Mollie system.
I found a LE site that has a review of the Homeland Security Vest and the reviewer showed in photos how he carried a 1911 handgun in place of mags in the first pocket on left ------- that is what I now have in mine , a Para-Ordnance P-14. It is very secure and really not that slow to draw from with a little practice.
So with a "grab & shrug" , I can leave my house with a loaded pistol {14 rds.} , two extra mags { 28 rds.} , 20 + rds. of 12ga. , and 30-60 rds. of rifle ammo in mags ,that is around 100 rds. of ammo for whatever firearm I also grab -- your choice what to pack , may be more then my load out --- plus any other "stuff" like a Leatherman knife/cell phone/flashlight etc. etc.
Here is the link to LE review;
http://newamericantruth.com/reviews/other/phalanx.htm
It is a really good , no BS review of what I think is a very good vest.