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Posted: 4/7/2024 1:48:59 PM EDT
I just purchased a hk usc and was delivered to my ffl yesterday but now the fun begins with the modification of the usc to a ump copy.
This will take me some time because bills and kids but will keep this thread posted with updates when I have any. Thanks
Link Posted: 4/7/2024 2:38:27 PM EDT
[#1]
Been there, done that, happy trails. Here’s a little inspiration. 😉
Link Posted: 4/7/2024 6:22:03 PM EDT
[#2]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By chargerdude70:
Been there, done that, happy trails. Here’s a little inspiration. 😉https://i.imgur.com/YWqQc6N.jpeg
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Oh my!!   That’s a beaut you’ve got there.
Link Posted: 4/21/2024 1:28:44 AM EDT
[#3]
Congrats OP.  I REALLY want to go on the same journey but I just don't shoot 45 acp as much. That and after doing my g36c conversion (back when Tommy 1st started), it just now sits in the gun safe.
Link Posted: 4/21/2024 2:00:12 AM EDT
[#4]
Here is a post over at HKPro.com with absolutely everything you need to know

https://www.hkpro.com/threads/hk-usc-to-ump-stock-block-conversion-write-up.351578/
Link Posted: 4/28/2024 12:44:57 PM EDT
[#5]
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Originally Posted By Mr_Maim:
Here is a post over at HKPro.com with absolutely everything you need to know

https://www.hkpro.com/threads/hk-usc-to-ump-stock-block-conversion-write-up.351578/
View Quote


Thanks
Link Posted: 4/29/2024 10:34:29 PM EDT
[#6]
I love mine. I had it SBRed; TommyBuilt stock block conversion. It now wears the Stock Block C adapter for an AR stocks. Far more comfortable than the standard UMP stock.

This gun gives me a shit faced grin every time I shoot it. I wish I had the cash for a transferable Grease Gun SMG to go with it. .45 ACP PCCs are awesome.

Attachment Attached File
Link Posted: 5/7/2024 5:14:06 PM EDT
[Last Edit: Pair_of_ACES] [#7]
@Esd2010

I don’t know how committed you are to this project, but I stumbled into a USC for like $1100 and figured I’d do sort of a ‘halfway’ conversion. It works to give that UMPy look without all the added expense.

All in all, I think I spent about $1600 on the whole thing including tax stamp.

Here’s a link to the how-to

The half-assed UMP/USC

Link Posted: 5/31/2024 2:19:46 PM EDT
[#8]
I had mine done by HDPS back in 2008.
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Link Posted: 7/27/2024 4:38:14 AM EDT
[#9]
Pretty much finished with the usc to ump build with only needing the top rail and front rails but will eventually sbr the rifle
Link Posted: 7/29/2024 3:09:43 PM EDT
[#10]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Esd2010:
Pretty much finished with the usc to ump build with only needing the top rail and front rails but will eventually sbr the rifle
View Quote



https://www.hdps.org/

He sells the rails. Definitely go ahead and submit a form 1 after you put some mags through it. You won't regret it. .45 ACP goodness
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