I dusted off my super-accurate digital postal scale and weighed the individual components of my "max carry" rig:

Empty firearm: 32.1 oz
Chambered round: 0.5 oz
Loaded mag + 16 rounds: 10.5 oz
Spare mag + 16 rounds: 10.4 oz
Holster, empty: 7.5 oz
Spare mag 2 + 16 rounds: 10.4 oz
Spare mag 3 + 16 rounds: 10.5 oz
Leather pouch for spare mag 2 and 3: 4.2 oz
Carry belt (with steel insert for support): 10.4 oz

Total carry weight: 96.5 oz, which comes to 6 lbs 0.5 oz.

How does your favorite rig stack up?