I have a USC/UMP converted by TommyBuilt.
I love it but it's kind of unwieldy and difficult to find a discrete case that houses it loaded while also not looking like a high dollar item.(e.g. lap top bags) It's nearly the size of my 10.5 LMT. Also, it's the last gun I have chambered in 45 as I have moved completely to 9mm in all my carry guns. I'm down to like 150ish rounds of 45, less than 50 of those are self defense rounds. That's what has precipitated me kicking this idea around.
I had wanted a UMP since I was in high school and saw Bad Boys 2 in the theater.
So there is some nostalgia there. It is SBRd and that would be a pain in the dick to deal with. So those are checks in the "keep" column.
The nostalgia and HK goodness are the main reasons for the purchase, with a plan to use it as a HD gun. Unfortunately, I haven't found a light solution that I like that could've brought it into a home defense role so it got relegated to a range toy. Now it's become a safe queen because of my unwillingness to buy 45 opting for buying 9 and 5.56.
I know I can throw a 9mm barrel in and get new mags. But then I get the advantage of ammo commonality of the SP5K without any of the size benefits. Then I'm also spending extra funds on a barrel that could go towards ammo. (if it ever restocks)
I'm having a little crisis of conscience about this because I do love it and have said I'd never sell it. I love the thing, I love looking at it, I love pulling it out when I'm watching The Town. But that's kind of all it gets used for, finger banging and IG posts. Anke has turned into an insta-thot!?
I try not to make decisions while go up hill, and I feel like the ammo crisis and impending political fallout/fight constitutes "up hill."
Just looking for general input.