Freedom's Militia gunshop
New Member
I'm thinking about converting my HK USC to a UMP from Tommy Built... has anybody done this or had any experience using Tommy built haven't heard of him before today.
Tommy Built USC to UMP conversion
- Thread starter Freedom's Militia gunshop
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Tommy is a straight up guy that does top notch work. I got to know him after buying a T36 from him. His work is phenomenal.
wscato
Well-Known Member
He just recently done one for me and he is awesome. I opted for the Stock Block conversion instead of a fusion. I sent him my gun and all the parts on a Wednesday and had it back the following Tuesday. If you have questions let me know.
Jeremy
Well-Known Member
Good guy to deal with! Hes THE man for a fuse job. I did mine myself with a hdps stock block and parts from hkparts. A few hours and less than 1000$ got it done. Just need to get the vents milled in.
Some pictures and possibly some details on the builds would be greatly appreciated. 
I have an early USC collecting dust in the safe. It's a fun range toy as is, but please help spend my money.
I have an early USC collecting dust in the safe. It's a fun range toy as is, but please help spend my money. Jeremy
Well-Known Member
Had this USC for about 15 years before I pulled the trigger on converting.
www.hkpro.com
Sent the barrel to adco for threading. Still a toss up to sbr this thing.
From hkparts youll need stock block adapter, stock, ump lower, axle pin and mag. For tools youll need a hammer, punch, dremel and a beer. Maybe multiple beers when you take the lower apart!
HK USC to UMP Stock Block Conversion - Write-Up
. HK USC to UMP Stock Block Conversion This write-up covers the stock block conversion method for converting the HK USC to a UMP clone. It is a basic conversion only for the standard .45 acp USC and does not delve into the other caliber conversions. CONTENTS 1. Conversion...
www.hkpro.com
Sent the barrel to adco for threading. Still a toss up to sbr this thing.
From hkparts youll need stock block adapter, stock, ump lower, axle pin and mag. For tools youll need a hammer, punch, dremel and a beer. Maybe multiple beers when you take the lower apart!
OP
Freedom's Militia gunshop
New Member
Well my USC was delivered to Tommy Built today. Im excited to get it back and I will be sure to post a before and after when I do.
OP
Freedom's Militia gunshop
New Member
Yes in the future maybe in a couple months but for now it's going to stay 16in.
OP
Freedom's Militia gunshop
New Member
Does anybody know anywhere that sells german made UMP 25 round mags ? I've been looking everywhere.
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wscato
Well-Known Member
HKParts is a rip on most things. Go join the HKPro forum and start looking at the WTS post. Post a WTB there also. There are several members there are sitting on tons of parts that don't post WTS ads. That is how I sourced the majority of my parts. Start watching sites like HKSpecialist, Gatewood Supply, Arms Unlimited, RTG Parts, CLyde Armory, HDPS, Black OPs Defense etc. Only use HKParts as a last resort.
I paid at most $60 for my magazines 6 months ago, but parts and mags are getting scarce. The hardest item to find is HK rails. I've decided to get a set of Tommy Built ones once he gets them back from being coated. HDPS use to have them, but not sure since they updated their website to look modern. They are the company that makes the Stock Blocks and other aftermarket UMP parts. Also, while Tom has you gun ask him if he has any mags. I know he use to keep some a long time ago, with several other parts, but that may have dried up. Also, the US ones stink and are iffy at times. The German ones run fine.
Lastly, not sure how much you are wanting to spend, but just looked on Gunbroker and they were $115 now. Last time I looked they were going for $75. If I see any I will let you know.
OP
Freedom's Militia gunshop
New Member
Well I got it back from Tommy Built today and I am more then pleased! now I need to SBR it
OP
Freedom's Militia gunshop
New Member
Yes its marked ump and has stock holder. And congrats how long you have to wait ?
wscato
Well-Known Member
31 days