Note the message “Don Kurzyk’s Mafia of 12 fought with 12 Bonus weapons, 12 Falsified Documents, and 12 Private Jets.” Thre is NO mention of that person having an AR-15!!!!

So it would seem that there is a chance to loot any item from anyone, and if you find something, they DO NOT lose it from their inventory. 

As another test, i won Bodygaurds from this poor fool:

Your Mafia of 171 fought against SiAoZeR with a Wood Chipper, 21 AR-15 Assault Rifles, 4 Nail Guns, 4 Reciprocating Saws, a Silver Knuckles, a St. Patty’s Shillelagh, 56 Gold Desert Eagles, 30 Napalms, 20 Bookie’s Holdout Pistols, 2 Hedge Clippers, a Nambu Type 14 Pistol, 3 Axes, 27 Bonus weapons, 11 A Pint o’ Green Beers, 17 Federal Agents, 8 Half Dollar Body Armors, 18 Bodyguards, 22 Night Vision Goggles, 95 Body Armors, 13 Humvees, 12 Police Cruisers, 25 Porsche 911s, 23 Harley Davidson “Fat Boy” Motorcycles, 18 Armored Limousines, 34 Armored Cars, 14 Private Jets, 7 Chrome Skylines, and 25 Luxury Yachts.

SiAoZeR’s Mafia of 56 fought with a Gold Desert Eagle, 7 Sub Machine Guns, 2 Cupid’s Tommy Guns, 11 Police Batons, 2 Poison Gas Grenades, 20 Bonus weapons, 13 Chain Guns, 12 Federal Agents, 3 A Pint o’ Green Beers, 27 Bodyguards, 14 Falsified Documents, 21 Humvees, 4 Police Cruisers, 10 Armored Limousines, 8 Private Jets, and 13 Prop planes.

Eva Lye rallied the troops! (Effect: 2x experience)

(SBG) Kawika found a Bodyguards while fighting SiAoZeR! It’s been added to your Loot!

You WON the fight, taking 7 damage and dealing 13 damage to your enemy. You gained $0 and 4 experience points.     I will fight him again and lets see if he uses less bodyguards. So he had 27 Bodyguards….. Your Mafia of 171 fought against SiAoZeR with a Wood Chipper, 21 AR-15 Assault Rifles, 4 Nail Guns, 4 Reciprocating Saws, a Silver Knuckles, a St. Patty’s Shillelagh, 56 Gold Desert Eagles, 30 Napalms, 20 Bookie’s Holdout Pistols, 2 Hedge Clippers, a Nambu Type 14 Pistol, 3 Axes, 27 Bonus weapons, 11 A Pint o’ Green Beers, 17 Federal Agents, 8 Half Dollar Body Armors, 19 Bodyguards, 22 Night Vision Goggles, 94 Body Armors, 13 Humvees, 12 Police Cruisers, 25 Porsche 911s, 23 Harley Davidson “Fat Boy” Motorcycles, 18 Armored Limousines, 34 Armored Cars, 14 Private Jets, 7 Chrome Skylines, and 25 Luxury Yachts. SiAoZeR’s Mafia of 56 fought with a Gold Desert Eagle, 7 Sub Machine Guns, 2 Cupid’s Tommy Guns, 11 Police Batons, 2 Poison Gas Grenades, 20 Bonus weapons, 13 Chain Guns, 12 Federal Agents, 3 A Pint o’ Green Beers, 27 Bodyguards, 14 Falsified Documents, 21 Humvees, 4 Police Cruisers, 10 Armored Limousines, 8 Private Jets, and 13 Prop planes. You WON the fight, taking 0 damage and dealing 11 damage to your enemy. You gained $0 and 1 experience points.

There ya have it, CONFIRMATION that you steal nothing, but are awarded loot with no effect on the target!