I've been beside jeeps with the 106 mounted. That packs a punch.
The 84mm CG was standard issue - I served in a foreign military (Singapore) as a recon in an armored unit 20+ years ago before I moved to the US. Like the 106, the 84 packs a hefty punch too, and we had "surplus ammo" days where we had to fire almost everything we have just to rotate the ammo stock - it was totally insane.
Back then, we were running tons of US hand-me-downs, including refurbed ACAV M113's from 'Nam....