Yup, the urban ambush is over

,.... you've protected your VIP

, ......and you're just lighting a nervous cigarette

, ..when your brass start's to hit the floor.
With .45ACP at 1200RPM, that's a bad guy torso hit every 1/20th of a second. She may climb a little if you're of balance a little, but what the hell there's probably 8-12 hits anyway on the way up!
Need we say more on it's designed role. Ambush removal tool.
A general purpose combat SMG for Military or Police, with controllable F/A for entry, or street engagements out to 100 meters+ on S/A,... they are not.
Also they were the exotic cool SMG's

a lot of bad guys carried on TV shows in the 70's with their Sionics mounted for trouble.
I love the look of them with their suppressors.