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Discussion Starter · #1 ·
I am considering a USC how do you all like them that own them? the Sp5 had great sights from the factory and night sights were available reasonably and I love it. The usc does not have as good sights it seems and there is no factory rail mount. Trying to decide if the usc is worth putting the money into. Thank you for any help,
Greg
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I say no. I have both. The Sp5 is smooth and sweet shooter. The UMP/USC has this heavy bolt and the recoil pulse is not that nice. It feels "cheap". Its like a brick coming back at you. For the price for a UMP conversion, its not worth it.
 

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Discussion Starter · #3 ·
Thank you very much. That is just what I needed to hear. I really didn’t want to buy a bunch of magazines and go Through it all. Thank you again,
Greg
 

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I Bleed Urban Gray
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@TurboJindo the recoil impulse of the USC is typical of a light weight (all polymer) blowback operated 45 ACP. You can't compare it to the 9mm roller-delayed blowback of the SP5. The USC needs better sights as you noted, but it's an easy upgrade and the rail for one is ~$65 for you to mount an optic. Take a look here to learn more about the ergonomics on the USC

The other drawback is the 10 round only factory mags. You want more capacity, you need to buy hard to get Hera 20 round mags that cost $89 each (not that SP5 mags are cheap). The USC is definitely a joy to shoot, but in a very different manner than the SP5. If you want smooth shooting, stay with roller locked guns. If you want power and thrill, the USC works, but needs upgrades to be really enjoyable and to wring out maximum capability from the gun.
 

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Discussion Starter · #5 ·
Thank you very much for your help. the Sp5 is such a nice, smooth shooting gun it’s very hard not love it. And it’s fun to shoot open sights again. With the sb brace the rig Is just nice to shoot. Thank you again,
Greg
 

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I have both. And I second omega21's comments. Apples & Oranges. I enjoy shooting both, and the 16" barrel on the USC makes it very accurate. But the SP5 is in a class of it's own.
 

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Discussion Starter · #7 ·
Thank you for your help. You know how these things go. You can’t just buy the gun and go. The development stage starts next. Lots of parts, lots of ammo and tons of shooting until you get it just the way you think is just right. lots of effort. I hate to start all that and then be disappointed in the system. I just went through this on a Kriss Vector pistol in 9mm. I was totally bought into it until after around a thousand rounds it started failing. All sorts of trouble. Now Kriss fixed it for free but it took them over a month. Their 45acp one in a carbine has been fine though. I really did like that 9mm one though until it started failing. After that I was done with it. I sure don’t need another dead end project. Then I went to the B&T and loved it and then the Sp5 which I love. I see the B&T as a 911 on a race track and the Sp5 as a Range Rover on a farm. Both super high quality and incredibly good guns just very different. Thank you again for all of your help,
Greg
 

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I have a B&T APC 9K pro also. Love it. I got it because I could not find a SP5K.
Back to the USC 45. I’m not gonna go the UMP conversion route. I’m going to just enjoy the USC the way I bought it.
 

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Discussion Starter · #9 ·
That’s what I have with a Glock lower, I had/have a JP gmr15 with a ton of 33rd Glock mags so that was the way to go for me. Thank you for your help.
 

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I had the USC and converted to a UMP45. I loved shooting it and thought how could an MP5 be better? Then I got one. It's better. Besides the heavy bolt thunking inside a plastic receiver, the trigger is similar to a spring loaded staple gun. If you're shooting 50 yds or closer it's still a great combat gun. I've stretched it to 100 yds with a red dot. But if you've got a good amount of trigger time behind an MP5, you'll likely be disappointed. I will say, there is something about having 25 rounds of 45 ACP at your disposal, and I love the look of the UMP. That all said, shoot that piss out of that SP5.
 

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Discussion Starter · #11 ·
Thank you for your help here, I really do love the Sp5 and end up shooting it more then the B&T which is a great gun as well. Thank you again for the advice, it has been great.
 

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I am considering a USC how do you all like them that own them? the Sp5 had great sights from the factory and night sights were available reasonably and I love it. The usc does not have as good sights it seems and there is no factory rail mount. Trying to decide if the usc is worth putting the money into. Thank you for any help,
Greg View attachment 314449

The US/UMP is a different animal. Was meant to complement the USP for police, military contracts and cost less than the MP5 to manufacture.

Having said that, I had Tom Bostic do a stock block conversion on both of my USCs I picked up (right when HK reintroduced them to the US market a few years ago). In .45 ACP, they are my favorite PCCs. I get a grin every time I shoot them. When you disassemble them, you will appreciate their simplicity and durability. They are stupid easy to take apart and maintain. Just stick with genuine HK parts (short of 922R for the trigger, mag follower and floor plates).

HDPS sells picatinny rails for the UMP/USC. The UMP’s iron sights are adequate for their intended use.

HDPS also sells a stock block C for use with an AR stock. I like it over the standard UMP stock.

If you want 9 mm though, stick with the SP5 or B&T APC 9. Those are superior to the UMP 9.
 

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I enjoy my USC/UMP conversion every bit as much as my SP5. I don’t have any problem with the iron sights…they work very well for me. (This is only 15 yds)

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After the conversion, it has a top rail and I have a Holosun mounted on it. Not quite the right height but I can “shoot through” it with the iron sights without too much difficulty.

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As @madangler1 said the UMP and SP5 are different animals but I find the UMP to be a great PCC.
 

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Discussion Starter · #15 ·
Thank you again for all the help here. I had an HK94 years ago and did like it a lo. But one of those guns I sold when they went sky high on the market. On the B&T I have a small Vortex Laser dot which works fine. On the H&K the sights are great as they are I just put night sights on and it does everything that I want it for.
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This thread is tugging at my soul (rather future pocket book), just when I think not worth it…….the enablers chime in and hmmmmm……

Great idea with that painters tape (so simple and good contrast blue/brown), never would have thought of that……thx for sharing and nice shooting to boot…
 

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Discussion Starter · #17 ·
Thank you very much! I usually use ipsc targets and record a picture of my first 3 shots on each new gun. Then with something like trying to train multiple targets, inside a range using only one lane, I do that. It still gives you 3 separate targets to run just close together.
 

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I Bleed Urban Gray
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I had the USC and converted to a UMP45. I loved shooting it and thought how could an MP5 be better? Then I got one. It's better. Besides the heavy bolt thunking inside a plastic receiver, the trigger is similar to a spring loaded staple gun. If you're shooting 50 yds or closer it's still a great combat gun. I've stretched it to 100 yds with a red dot. But if you've got a good amount of trigger time behind an MP5, you'll likely be disappointed. I will say, there is something about having 25 rounds of 45 ACP at your disposal, and I love the look of the UMP. That all said, shoot that piss out of that SP5.
We routinely hit 200M steel targets in Jame's advanced course with the USC / UMP , but, yea, the trigger could be a it better, but plastic...
 

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I Bleed Urban Gray
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The USC... Was meant to complement the USP for police, miliatary [sic] contracts..
I'm not sure where that comment comes from about complementing the USP. Do you have a source for this? The UMP was indeed supposed to replace the MP5 as you noted, but I've never found any connection to the USP other than they both were introduced in the same decade...
 
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