UMP Semi lower Q?

F22_RaptoR

F22_RaptoR

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Does anybody know if you can get a hold of the S-F (semi only) UMP lowers in Canada? (also known as FBI lowers)

Preferably without the fire control parts (since the USC ones will be going in instead) although I will take what I can get...

Since there are Restricted class UMP's in Canada, I will assume they are legal to own.

Or am I stuck trying to get Questar to import one from the USA (if the State Dept. will even let it out)


I am doing a partial USC to UMP conversion (barrel staying 16" for now) basically I just need the lower, I am going to make my own stock block for an AR15 stock.


Thanks guys! :D
 
Just make sure you don't drill any holes in the front handguard. It will damage the gun and cause it to become as likely to KaBoom as a .40 Glock. And we all know how likely that is...


howaglockworks.gif
 
nickorette said:
An alternative is a HERA Arms USC folding stock conversion. Mine turned out good.

Arms East is the importer for Canada.


*SNIP*
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I was trying to get a hold of them, I would like an AR15 tube adaptor (since I have an extra Magpul CTR I can use) and the ones they offer are not available yet. Nice looking rifle ya got there! :D

El Cid said:
USC/UMP fire control parts are not interchangable.
Click to expand...

I have read a great deal about the USC to UMP conversions, I know there is quite a bit of work involved ;)

I have put a Jet Funnel on my Mark23, so im sure i'll be able to handle myself with the UMP lower.
 
can you please post a pic of your mark23 with a jetfunnel on it. im very curious to see how that looks.

btw, ive never seen a ump lower, ive only seen full UMP's as someone just stated one sold on the EE for about 6000 i believe could be 8, not quite sure. i looked into this a while ago as i am a fan of the ump, you are much better to modify a usc, than to track down a ump lower. still good luck to ya.
 
WolFF said:
can you please post a pic of your mark23 with a jetfunnel on it. im very curious to see how that looks.

btw, ive never seen a ump lower, ive only seen full UMP's as someone just stated one sold on the EE for about 6000 i believe could be 8, not quite sure. i looked into this a while ago as i am a fan of the ump, you are much better to modify a usc, than to track down a ump lower. still good luck to ya.
Click to expand...

Sure, I think I have a pic of it.

The magazine base plate is going to be used as a positive for a mold to make several for the 10 round magazines.

img0252small.jpg



Im almost positive that there have been guys that have done USC to UMP conversions on here.... Although maybe that was before getting anything from the USA was impossible....

Even though its still a lot less than getting a factory UMP, paying 750 bucks to get a 400 dollar part is a little bit much....

I guess if worse comes to worst, then I could always get it and an HDPS stock block, and import them in 1 go....
 
F22_RaptoR said:
I have read a great deal about the USC to UMP conversions, I know there is quite a bit of work involved ;)

I have put a Jet Funnel on my Mark23, so im sure i'll be able to handle myself with the UMP lower.
Click to expand...

Hey, no worries. I was just mentioning that there is no commonality between USC and UMP fire control parts AFAIK. G36 and UMP are very similar. USC and SL8 are similar.

But you installed a jet funnel, so I am sure you are qualified to reposition H/K trigger parts.

The HERA kit uses the USC fire control for a reason.;)
 
El Cid said:
Hey, no worries. I was just mentioning that there is no commonality between USC and UMP fire control parts AFAIK. G36 and UMP are very similar. USC and SL8 are similar.

But you installed a jet funnel, so I am sure you are qualified to reposition H/K trigger parts.

The HERA kit uses the USC fire control for a reason.;)
Click to expand...

Well thanks for the heads up :D

The trigger group parts are quite different (the USC has a different secondary safety, since the UMP uses the auto "sear" for this task), however IIRC the holes are in the same place however they may need to be opened up to a larger diameter (need to confirm this), there are some parts that need to be modded in the grip housing for it to work though.


Here is a pic from tactical Excellence's website (they used to do conversions)

That little tab needs to be removed for the USC's "secondary safety" to fit in.

UMPoldlower2.jpg






So does anybody else have any possible sources for the FBI lowers? I know they are relatively common in the USA, it seems weird that they can get them no problem, but we can't.
 
Well it looks like i'll be trying to get a Grease Gun lower from the USA instead....


Apparently even in the USA, the UMP FBI lowers are nowhere to be found.


Top Notch said they will pin the folding stock open, so it should be obtainable.


Dont really care about the bolt hold open....
 
El Cid said:
Hey, no worries. I was just mentioning that there is no commonality between USC and UMP fire control parts AFAIK. G36 and UMP are very similar. USC and SL8 are similar.

But you installed a jet funnel, so I am sure you are qualified to reposition H/K trigger parts.

The HERA kit uses the USC fire control for a reason.;)
Click to expand...

If the UMP and G36 are similar and the USC and SL8 are similar, then the USC and UMP should be similar because the G36 and SL8 are very similar. :D The G36 and SL8 are similar. The USC and UMP are ?

The SL8 is just the civilian version of the G36. Many parts are interchangable and/or identical. I went through the manuals and matched all the identical part numbers. (Its posted in the SL8 sticky)

I have been looking for manuals for the USC and UMP to do the same thing. I found both on line. I'll do another parts list showing all matching or interchangable parts and repost it. Give me a day or 2 to make the new list.
 
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F22_RaptoR said:
Sure, I think I have a pic of it.

The magazine base plate is going to be used as a positive for a mold to make several for the 10 round magazines.

img0252small.jpg



Im almost positive that there have been guys that have done USC to UMP conversions on here.... Although maybe that was before getting anything from the USA was impossible....

Even though its still a lot less than getting a factory UMP, paying 750 bucks to get a 400 dollar part is a little bit much....

I guess if worse comes to worst, then I could always get it and an HDPS stock block, and import them in 1 go....
Click to expand...


wow, thats pretty cool. thanks for the pic,.
 
Here is a parts list for the UMP and USC. Some of the part number are the same. red=same part number. green= interchangable
There may be some other parts that are interchangable also. Such as some of the trigger springs.

I have found errors in the HK manuals. They are in bold letters. There may be other mistakes.


part/ part number for UMP/ part number USC


firearm part UMP USC

Uper receiver w/ barrel, comp (1-21)--- 217503--- n/a
upper receiver--- 217509--- 219492
front sight--- 217506--- 217506
roll pin, front sight,4x144mm--- 928747--- 928747
rear sight, comp (4-10)--- 217513--- 217513
sight support--- 217992--- 217504
flat spring--- 217515--- 217515
rear sight --- 217516--- 217516
windage adjustment screw--- 217517--- 217517
rear sight spring--- 217518--- 217518
sight support spring--- 217504--- 217503
elevation adjustment screw--- 217505--- 217505
roll pin, sight support 4x30mm--- 987695--- 987695
cocking lever--- 217519--- 217519
cocking lever spring--- 217508--- 217508
cocking lever support--- 217507--- 217507
roll pin, cocking lever support 4x16mm--- 986546--- 986546
barrel .45 acp--- 219403--- 219497
barrel .40 S&W--- 219402--- n/a
roll pin, barrel, 6x32mm--- 988425--- 988425
ejector--- 219399--- 219399
hand stop, comp (19-21)--- 219364--- 219364
hand stop--- 219342--- 219342
insert plate, handstop--- 219343--- 219343
Cylindrical screw, handstop,5x16mm--- 219414--- 219414
axle,buttstock--- 219401--- n/a
buttstock, comp (24-25 UMP)--- 217558--- 219496
locking pin.comp--- 217197--- n/a
buttstock--- 217559--- 217528
buttstock lock--- 205454--- n/a
buttstock lock spring--- 205455--- n/a
bolt, complete,.45 ACP--- 217572--- 219495
bolt complete, .40 S&W--- 217562--- n/a
bolt 45 ACP--- 217574--- 219499
bolt40 S&W--- 217564--- n/a
extractor 45 ACP--- 217573--- 217537
extractor 40 S&W--- 217231--- n/a
firing pin assembly, comp--- 217555--- 217555
firing pin spring--- 217523--- 217523
firing pin retaining pin--- 217587--- 217587
recoil spring assembly, comp --- 217548--- 217548
lower receiver, comp (30-56 USC)--- n/a--- 219487
lower receiver--- n/a--- 219491
pistol grip, comp (33-58 UMP)--- 217531--- n/a
pistol grip--- 217546--- n/a
trigger--- 205420--- 205420
trigger spring--- 205422--- 217918
axle 3X--- 217532--- 217532
sear--- 205439--- 205439
sear spring--- 205421--- 217917
release lever--- 217535--- 217535
release lever spring--- 217534--- 217534
locking lever--- n/a--- 219094
locking lever spring--- n/a--- 214616
bolt--- n/a--- 214615
elbow spring right--- n/a--- 217496
elbow spring lfet--- n/a--- 205201
hammer--- 217545--- 217936
hammer spring left--- 217533--- 217533
hammer spring right--- 217585--- 217585
notched disk--- 205417--- 217614
compression spring --- 205418--- 205418
index plate--- 205419--- 205419
axle, locking lever--- n/a--- 219521
slide--- 214608--- n/a
safety lever left--- 217753--- 217945
safety lever right--- 214607--- 205437
magazine release--- 217537--- 219530
magazine release spring--- 217536--- 217536
magazine release axle--- 217538--- 219549
bolt catch--- 217540--- 217540
bolt catch spring--- 217539--- 217539
roll pin, bolt catch--- 928080--- 928080
back plate--- 217541--- n/a
buffer--- 217544--- 217544
pistol grip cover--- 205438--- n/a
magazine, comp 45ACP (59-63 UMP)(58-62 USC)--- 217576--- 219486
magazine, comp 40S&W (59-63)--- 217766--- n/a
magazine housing--- 217581--- 219522
magazine housing--- 217767--- n/a
follower--- 217577--- 219523
follower--- 217769--- n/a
magazine spring--- 217578--- 219524
magazine spring--- 217799--- n/a
locking plate--- 217579--- 219525
locking plate--- 217770--- n/a
floor plate--- 217580--- 219526
picatinny rail short comp w/ screws--- 219362--- 219662
picatinny rail, short--- 219660--- 219660
cylindrical screw 2x--- 219413--- 219413
picatinny rail, long, complete--- 219363--- 219663
picatinny rail, long--- 219661--- 219661
cylindrical screw 2x--- 219413--- 219413
sound suppressor, complete 45 ACP--- 217831--- n/a
sound suppressor, complete 40 S&W--- 217831--- n/a
carrying sling, comp--- 219085--- 219085
magazine holder--- 219404--- n/a
 
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