H&K USC 45 Carbine... good and the bad?

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If we could own SBR's in Washington I would be all over a UMP conversion, but until then I don't really care for the looks of the USC.
 
I agree with Taliv that the reason to shorten the USC barrel is so that it can be suppressed. The gun is rather quiet to begin with, so it must be scary quiet with a suppressor. Where I part ways is with all of the other UMP-like alterations. It's one heck of a lot of money to spend to get a rifle that will never be a UMP. I guess I'm not in love with the UMP enough to alter my USC, but I can understand those who do and drop the coin. I have the same reservations with all of the SL8/G36 conversions. That said, I can see that it would be a fun project.
 
Well just got a chance to take a look at the USC. Other than it not having a real "box" or case (for a $1800 rifle I expected something classier). I love it. Cant wait to go shoot it tomorrow!
 
Why butcher your USC? There's a link below that will take you to an outfit that sells 20 round mags for the USC. It's a great little carbine that is accurate and drop dead reliable. I've had 10 years of trouble free shooting with mine. Enjoy! Did I mention that the USC will handle the 45 Super cartridge? I wouldn't be pounding it on a routine basis with the Super, but shoot it it will. Just don't feed it lead bullets. Mine seems to prefer Silvertips when not using 230gr FMJ.

http://lanworlddefensegroup.com/Hera.htm
 
I totally agree with that. I love the way it looks and feels stock. The only thing I plan to do is 20rd mag and maybe sbr it with a can.

Sent from my Samsung Fascinate using Tapatalk for Android
 
Did I mention that the USC will handle the 45 Super cartridge?
Click to expand...
I don't doubt it will handle 'em, but i'd be careful with those, they are mighty hot. From all accounts (never tried any in mine) the USP will handle it as well, but I wouldn't use it very often in that'n either.

:)
 
the only issue that I have with the twenty round mags is that they are single stack with the mag hanging down way low making the thing look like a pogo stick. If I cared enough about capacity I would probably be more prone to mag cinching two mags together.

There are also 42 round drums being made for the USC converted from ProMag drums and USC mags. The key to reliability seems to be to download them by one. I have such a drum but have not used it and am still looking into any 922r issues. One way or the other, 20 or 42 rounds, with .45 you are carrying a good amount of weight in ammo.
 
ProMag has a spotty reputation for any mag, and I formerly owned one of their 10/22 drums. It was the worst magazine I have ever owned...I would avoid the drum and just go with the stick mags.

:)
 
The drums are nothing more than an oddity and how well they work depends upon who made/converted them. I still have hopes thet ProMag does one for the USC as the one that they did for the SL8 is rock solid and completely reliable. I do think that $130 is rather steep for the aluminum 20 rounder. I can live with a mag cinch.
 
Well just got back from the range with the USC. I must say I am pleased with the accuracy of the gun. With the EoTech dialed in at 50 yards, 6" steel plates were a breeze. Even out to 75 yards on 6" steel plates, a ding every time. The trigger takes some getting used to but once you master it no problem. Of course there were no malfunctions of any kind with 100rds of Magtech 230gr. Great looking and shooting gun, would definitely recommend to anyone who doesnt mind paying for what they get.
 
I know this thread is old, but having just come across the USC and looking at it, I have a question about it.

The length of barrel hanging out there looks like it could be used for an integral suppressor. Is this possible for the USC?
 
The barrel length is only for legal compliant of at least 16". The real version, UMP, has a much shorter barrel and is threaded for a can. I know of no integrated suppressor. I just got mine and personally love it. I'm just trying to decide between a real UMP lower or the Grease Gun mag conversion.
 
I understand that the barrel is that long to be legal. However, the MP5 is blowback operated & integrally suppressed. What I'm getting at is make that portion of the barrel thats sticking past the end of the stock an integral suppressor.
 
Most MP5 are not integrally suppressed. HK did make the MP5SD that was integrally suppressed but its a special model. It would be very difficult to make a barrel integrally suprressed at home as it entails encasing it in a shroud with baffels and drilling numerous holes in the barrel itself.
 
Red Jacket could probably do it, but I can guarantee that it'll cost you!

:)
 
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I wasn't asking if it could be done at home or how difficult it would be, I was just wanting to know if it COULD work like I was thinking. Thats how Red Jacket made a suppressed Saiga: port a 26" barrel and make most of it the suppressor.

I figured with what looks to be 10" of barrel sticking out there on the USC, the same could be done. Instead of threading the end of the barrel for a supressor that extends past the end of the barrel, make one that is part of the barrel.
 
I don't see why not...its a carbine with a blowback operating system...should be easier than a gas operated, rotating bolt shotgun.

BTW, the MP5 is a delayed roller locking action, not blowback. ;)
 
Hmm. H&K needs to update its webpage then:
Click to expand...
We are talking about these guys:
HKbulletsBackwards.jpg

Don't get me wrong, I like my HK USP-45FS, but their marketing dept. is, umm, special. That said, they managed to get it right this time, it is a "delayed blowback", which is about as similar to blowback as a MG-42 operating mech. is to a Hi-Point pistol. The MP-5 is roller locked (like most of the HK stamped rifles/carbines), the UMP is strictly blowback (which is a fairly atypical design today). This is made possible by the low pressure cartridge that it fires (even by pistol standards).

:)
 
The HK UMP-converted USC is just straight up sexy. If I ever buy one (it's very low on my "buy" list), I will for sure spend the coin to convert it and SBR it.
 
pro's: looks cool. greater accuracy and velocity out of a carbine
con's: plenty of standard capacity .45 autos have larger capacity, more expensive than other more practical offerings

Just my thoughts. I don't own one.
 
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