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Discussion Starter · #1 ·
I took advantage of the recent discounted offer on MKE 94a2 rifles with plans to make it 922(r) compliant as a summer project. Given the number of places and resources, I thought it would be interesting and perhaps helpful to others preparing to do a similar conversion.

I've worked on a demilled MP5 before but haven't done an out of the box conversion on this MKE. Through this site and others, I found several good threads on the parts and build experience (I wasn't sure about referencing this silencertalk.com experience - apologies if it's not allowed), along with various links to recommended resources and parts on this forum:

Along with the age old guidance of searching the forums first for help, I must say that the search function on HKPro works quite well ;) coupled with the with Gunwiki 922(r) Worksheet for MP5 builds and Clones.

As noted, the MP5 needs 6 US-made parts to be 922r compliant. My goal is to update the basic, accessible internals, have the stock detached from the grip to allow an alternative stock, and make changes to the barrel.

First things first: I purchased the carbine from HK Specialist - great price, great service and communication. The photos on the site were representative of what I purchased.

Here's a look at the actual MKE I purchased. Generally a very clean item, with a couple of transport marks, most noticeable the paint scratches on the barrel.



The receiver and main body was fine, and as I plan to make changes to the front end, the paint blemish (likely happened in transport) is a non-issue. After a good thorough cleaning the action is relatively smooth and crisp. The most noted grime and grit was in the cocking tube, not easily accessed, but modern cleaners, swabs and elbow grease work wonders.

Next will be on parts and sourcing...
 

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I'M interested into how to remove the stock from the lower grip. I bought one of these also and plan on converting it also. I have the 94p and 94k models already and they are great clones. So I will be watching your post to get some ideas. Thanks for your help!
 

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at times the welds leave something to be desired but other than that my MKE k clone is 100% spec to HK

I compared this to ChopstixKids post about what to look for in a pro build and everything on the MKE is how it should

Pretty impressive if for the price!
 

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I took advantage of the recent discounted offer on MKE 94a2 rifles with plans to make it 922(r) compliant as a summer project. Given the number of places and resources, I thought it would be interesting and perhaps helpful to others preparing to do a similar conversion.


The receiver and main body was fine, and as I plan to make changes to the front end, the paint blemish (likely happened in transport) is a non-issue. After a good thorough cleaning the action is relatively smooth and crisp. The most noted grime and grit was in the cocking tube, not easily accessed, but modern cleaners, swabs and elbow grease work wonders.

Next will be on parts and sourcing...

really? All that holds the cocking tube in is a roll pin in the handle. easily removed and you take the end cap off and clean inside
 

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Discussion Starter · #7 ·
really? All that holds the cocking tube in is a roll pin in the handle. easily removed and you take the end cap off and clean inside
Sorry, I should've specified that this was field stripped. I didn't want to mess with the roll punch. There was similar grit and flings down by the intersection of the stock and lower grip, which all came out with some Gun Scrubber and swabs.
 

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Discussion Starter · #8 · (Edited)
I'M interested into how to remove the stock from the lower grip. I bought one of these also and plan on converting it also.
I agree the MKE carbines and pistols are very good clones. The fit and finish on the products are very clean, an excellent value for what I was able to get out the door for less than $1,000.

I spoke with a local smith about the welded stock, and he said he could likely separate it for me. I'm going to put it up on the bench and see what may be able to do in my garage shop. As part of a list of work, I was quoted $30 to separate the stock from the grip. IGF said that in their experience, some come apart and look nice as they weren't welded very solid, other ones are completely welded to each other and some of the grip frame may come off in the buttstock piece. It just depends on the luck of the draw.

For example, the bars welded into the magwell on my 94a2 are quite flimsy, tacked on to the sides of the well with two small beads. Others have said that the bars were completely welded and had to be milled off. I'm going to take a closer look tomorrow, but think that I may be able to pop them out and grind out the remaining welds.
 

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Discussion Starter · #10 ·
There's a good thread on the forum today from MikeDeltaFoxtrot with a write up of his MKE AT94a2 conversion.

Now for the parts: I went ahead and purchased a few US parts from RTG and HK Parts to add up to the six needed parts.

HKParts.net provides five of the needed 922r parts:
  • HK MP5, MP5K Cocking Handle - US Made
  • HK U.S. Made Sear
  • HK U.S. Made Hammer For Trigger Pack
  • HK U.S. Made Trigger
  • Trigger Box - US Made
I purchased a US-made wide foreguard from RTG as well as IGF's US-made Recoil Assembly (interesting to note, as I plan to be sending in the rifle to IGF for some specialized work - more on that later). With this approach, IIRC, I can change out the forearm and remain 922r compliant. I have an imported butt stock but could add a US made one as needed. For another build, I'm considering their U.S. Made MP5 SD Shroud once I locate a nice SD foreguard: it's not cheap, but the reviews are very good. US-made rollers and firing pins are available but aren't mentioned on the wiki as contributing to 922r.

I've decided not to go the US magazine route (with new US-made magazines that include US body, follower and floorplate) as I also have original foreign made HK and other aftermarket mags for other items in the safe.
 

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If I'm not mistaken, if you want to use that US trigger box, you will need a new grip, or do some dremel work on yours...

Hope I'm not wrong on that, I replaced mine with a whole new lower, (US grip with german internals from PTR) with switching out the .308 ejector and hammer spring with the MKE originals. (I ended up having to replace the trigger, sear, and hammer for 922r of course)
 

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Discussion Starter · #12 ·
You may be right, but I thought I'd try to use the US trigger box with the MKE grip (with a little elbow grease). if it's a hassle we'll get a new grip.

I appreciate the feedback as well on your experience.
 

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Discussion Starter · #13 ·
With the work to be done on grinding and finishing, I took it to a local gunsmith with experience on the MKEs. He's known for his attention to detail. Considering the the close, flush welds that attached the stock to the lower grip, it seemed the best course. Here's a detail shot showing the welds:



He's going to attempt removal of the stock from the grip and see if he can save the lower - otherwise I have a new lower. Bonus if he saves the stock, but I have an A2 ready to be fit.

He's also going to mill out the pins in the magwell. One of the pins was lightly welded and came out without a problem (as you can see below on the left), leaving only a little slag to be wiped away. The other (right) is welded along the edge of the pin and will require a little time and effort:



So a little vacation at the gunsmiths - should have it back in a week.

After that I intend to send it off to IGF to have the barrel shortened with a new three lug and suppressor thread added, along with a fake suppressor pinned into place. IGF offers well respected and highly rated parts and service, so that one-stop-shopping is attractive when combined with their overall finish work. Having the pinned fake can is in preparation for what I hope will be a change to the laws on the books to allow SBRs in our fair state, which today is a no-no.
 

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"He's going to attempt removal of the stock from the grip and see if he can save the lower - otherwise I have a new lower. Bonus if he saves the stock, but I have an A2 ready to be fit. "

I am very interested to see/hear how the stock/lower seperation turns out. I took mine to the local gunsmith and in theory he thinks he can remove with a spot weld bit, I on the other hand am not convinced he can do it without completely destroying one or the other. I didn't leave it with him. I want to hear from other HKPro members like yourself before let him experiment with mine. Please post the outcome and pics if possible.
 

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It's actually kind of mute, if you ask me.... I consider the stock garbage from the get go.... It has been cut back a little where it attaches to the reciever. (probably so it is easier to fit as one piece.) So, save the lower, consider the stock collateral damage. Just my 2 cents.
 

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I agree, the stock adaptor should just be a write off since it was cuts far back as to remove a lot of the bearing surface in the rail area. keep the plastic but can the metal, have your guy concentrate on the trigger housing. Besides, A2 stocks aren't that expensive.
 

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It's actually kind of mute, if you ask me....
Did you actually mean "mute" as in incapable of speech or did you mean "moot" as in of little or no practical value or meaning?
 

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Moot...

run and hide....:redface:
 
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