Should be any of the soldier jobs
but so far I had no luck getting it; I think it has a very low drop rate Thanks, I know it's under the soldier jobs.
Usually, they have certain things you can get under certain jobs of the tier.
I was told last night by one of my mafia she's gotten it several times using the Museum job. So, try there. She had an extra and gifted it to me. I'm good to go! Thanks for trying though. (from pierssy)This answer is good I wanted a boxing ring for ages and used up loads of point on the job tier, but only on the jobs marked with a loot sign. I tried the museum job and on the fifth go got the boxing ring !!
Soldier level, any job with chance to loot. Time and patience
Has dropped several times from museum job...Soldier Tier, Museum Break-in.
Boxing Collection items will drop in the Soldier Job Tier..
hitman job tier
You get the boxing collection by doing jobs under the Soldier job tier or you can get some of your mafia members to send the parts that you are missing to you as a gift.
you do the jobs in the hitman job tier until you get it.
Any of the Hitman tier jobs
To get a falsified document in Mafia Wars you must complete the "Underboss" job "Take Over an Identity Theft Ring".
How do you do job assists in mafia wars?
Hitman Job tier: Protect Your City From a Rival Family = Topaz Ring
Soldier Tier Jobs. I think it says. XD
Any job on the Soldier tier might drop the boxing gloves - they are loot items and dropped randomly.