HK USC to UMP conversion

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[/IMG] 25yd range report
 
Moparlover said:
usc lower will not take the ump double stack mags.usc upper needs to be opened up a bit for the double stacks and ump lower. lower also has to be "hooked"
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So does that mean that a USC can be made to accept UMP mags?

Is the USC only made in .45cal?
 
MPI said:
Is the USC only made in .45cal?
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If you can find the bolt set and barrel for other caliber you can get it. Although HDPS sells em at like $600 total for a set in U.S. before import.

If you are asking about factory build, its only in .45acp
 
I have a possible source on a Navy UMP lower which of course has a selector switch that shows a 0,1,2 on it. The 2 is useless with the USC parts. So my question is this legal? Or because its not the registered part (the upper is) is it ok?
 
Questar commented to me a year or two ago that the CFC has issues with those lowers so probably wouldn't be a good idea to try importing one.
 
i thought the lower. is the registered firearm .....

the uppers are not.

am i wrong ? i thought the part with the trigger on it. is the part that is classified .. no ?
 
usc UMP conversion question

When dying the USC black does one have to take the entire rifle apart? What is the correct process and what type of dye should I use?
 
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