Uh, that's north of 4.5 pounds (74 to 77.5 ounces) of ammo not including magazines.
1 x Glock 19 = 20.99 oz
3 x 15-round magazines = 7.38 oz
4 x 33-round magazines = 14.72 oz (fact check on line 3!)
178 9mm * 182 grains = 74 oz (fact check on line 4!)
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~117 oz or 7.3 lbs
That is not a load-out that would let you do a parking lot sprint to catch a straying toddler. To simulate, hang 5x1.5-lb or 4x2-lb weights from 6 or 8 inch strings from a good gunbelt and sprint to the mailbox (or just the width of the living room). Anything faster than a saunter is going to get uncomfortable quick.
As far as the pants go though, they might be on my list to replace the discontinued 5.11 Covert Khakis. Well, it'll be that or a man purse. With 2 phones, a wallet, keys, backup drive, light, knife, writing utensil, and multiple work IDs I need a better system or I look like somebody with a pocket hoarding disorder.
References:
http://www.inetres.com/gp/military/infa ... _ammo.html
http://www.glockfaq.com/content.aspx?ck ... odel_guide
http://books.google.com/books?id=8RxJxY ... ht&f=false