Who knew MKE made a Ukelele? Updated with range test.

BB57

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Since I already have three of them the wife asked why I needed a third one.

I told her this one was Turkish and was a little different.

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I acquired the Ukelele case a couple years ago - in a gun shop no less - to use with my Uzi but it never quite worked. It does however fit this CAI imported MKE made MP5 clone quite well.

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Importing the media misnamed “assault rifles” as pistols has so far not been drawn into the scope of the 922(r) restrictions, and once here, you can then add a pistol brace, SBR them, or just use a sling properly set up to “push pull” and stabilize the pistol.

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As a partial aside and frankly as one of the motivators to buy this particular pistol, the BATF put out a new proposed rule to apply factors and a worksheet to determine whether a braced pistol is in fact an SBR. The very restrictive nature do the proposed worksheet 4999 will effectively reclassify the vast majority of braced pistols as short barreled rifles and require the owners to either convert to to unbraced pistols, install a longer barrel to reclassify them as rifles, or submit a Form 1 and a $200 tax stamp fee to register them as short barreled rifles.

The proposed rules are open for public comment until midnight on September 8 2021.

Factoring Criteria for Firearms with Attached “Stabilizing Braces” | Bureau of Alcohol, Tobacco, Firearms and Explosives

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I have serious reservations about anything related to CAI as the angry beavers there can screw up pretty much anything. I categorically will not buy anything CAI makes or otherwise assembles, but I will buy both new and surplus firearms that they do not otherwise molest.

In this case, looking at the history of these Turkish made MP5s and their import history it seems CAI has had a positive effect, with CAI inspectors at the factory inspecting them before they ship.

prior to CAI becoming the US importer, Zenith had some significant QA issues on the MKE MP5s they imported as the Z5-RS and CAI seems to have resolved those issues with a much better relationship with MKE.

The finish quality on this isn’t quite at the same level as the HK-94, or the HK-91 I used to own, but it’s close. The welds are a little more evident, but still very well done. The internal machining of the bolt carrier and roller locking system is superb.

In addition to the HK Tri-lug attachment for the flash hider, the barrel is also threaded 1/2-28 with a thread protector, so there are two different suppressor mount options.

The trigger is a typical long and slightly creepy HK trigger, but it’s not bad at all by HK clone standards and overall quality appears to be very good.

I like the slim, old school, hand guard, but the wider “tropical” hand guard will also fit just fine.

The MKE MP5 clone also uses a push pin in the front of the trigger assembly like the MP5 and uses a welded cross bar to prevent the use of a full auto bolt carrier.

As configured it weighs 8 pounds 7 oz with a full 30 round magazine, but at 116 oz empty I’d does come in under ATF’s proposed 120 oz upper limit for a braced handgun. However the SB-PDW style brace will accrue 2 points and the 13” length of pull will pick up 3 more points kicking it into the SBR category if the rules are adopted as proposed, just based on the brace alone.

It also comes with a very close knock off of the B&T optics mount and I’ll probably install one of the dot, ring and dot, or ring reticle capable Holosun sights on it.
 
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I took it to the range today and it was interesting but ultimately successful.

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The rear sight is typical HK, the difference on the MP5 (and on the HK-94) from the G3/HK91 is that the four apertures are all the same height, and do not adjust elevation. Instead they just vary in diameter to accommodate the prevailing light conditions.

Elevation adjustment was straight forward, windage adjustment wasn’t. Unlike the HK-91 I used to own the windage adjustment isn’t exactly smooth and it took some trial and error adjustment to get it centered. One turn of the Phillips head screw is roughly 2” at 25 yards and a screw on the top locks the sight once the adjustment is made. Travel is limited and when finally zeroed it was roughly an inch from the limit of travel at 25 yards.

The elevation adjustment requires a special tool, but in a pinch a set of snap right pliers or a pair of forceps with narrow jaws will work. Elevation travel is roughly 2 1/4 inch per turn at 25 yards.

The less than easy sight adjustment is by design. German military doctrine calls for the MP5 to be zeroed at the armorer level with troops not adjusting the sights but rather compensating with Kentucky windage if it doesn’t shoot to point of aim. The idea is that any one trained in the ways of MP5 could pick up any MP5 and use it with suitable accuracy.

The sight is designed to be be zeroed at 25 yards/meters. This gives it a mid range trajectory of roughly +2” at 60 yards/meters and then passes back through the line of sight at 100 yards/meters.

I zeroed it with a max load of HS-6 with Hornady 115 gr HAP bullets, and it worked well for a 25/100yd zero and shot about 24” low at 200 yards. Average velocity in the 8.9” barrel was 1440 FPS.

25 yard iron sight groups were not terribly inspiring and this one was typical. To be fair the glare off the top of the front sight post was impressive and I didn’t have a lighter or sight black to blacken it. That created some vertical stringing. The background of trees, shadows and a bean field didn’t help either in terms of keeping the front sight and ring precisely centered, so shooter error probably played a big role in the less than impressive accuracy.

However the acceptance German military acceptance standards for the MP5 were in the neighborhood of 1.9” at 25m, and it’s still meeting that standard even under less than ideal conditions.

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50 yard groups with the Holosun reflex sight were improved at around 4 MOA. 20 shots on this steel plate measured about 2” center to center.

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I have a full size IPSC torso plate at 200 yards and I finished with 30 rounds on it. Holding on the top of the head produced consistent center of mass impacts. 30 rounds rapid fire didn’t seem to cause any heat related problems with each shot still impacting the plate. It’s clearly capable of minute of man accuracy out to 200 yards.

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Reliability started out poor, but it seems to have been related to the new magazines. Initially neither magazine wanted to feed from a full magazine and I had to reduce to 25 rounds to get the initial round to reliably feed.

There were also a few failures to feed the last round in each magazine at the start of the session, although by the end of the session and 150 rounds both magazines were feeding reliably. Cleaning and lightly oiling them prior to first use would be a good idea, as would using a wooden dowel to cycle them several times.

To be fair, the only misfeeds that occurred were with the flat pointed hollow cavity HAP bullets. Round nose FMJs fed flawlessly even early in the range session.

Still, I’m ordering a few factory HK magazines.

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The reason I used to own an HK-91 rather than “still own” is that the roller lock system, in it was very particular about the specific recoil impulse of the ammunition. If you strayed very far from NATO specs in terms of bullet weight, velocity, pressure and powder burn rate it would really beat up the cases on extraction. With some loads the cases would be ejected into the next county and the striations on the case created by the fluted chamber would be so deep and sharp that the cases were not reloadable.

The good news with this MP5 is that it doesn’t seem to be load sensitive. The striations on the case were limited to powder stains with no imprint in the brass.

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The max loaded HAPs did show some dented case mouths that reminded me of cases fired from a GI issue 1911. However, with one or two possible exceptions they should all be reloadable. There was also one pierced primer, which is odd as the firing pin appears to be suitably rounded. Gas coming back toward the shooter was a non issue, and other than some powder smoke around the ejection port after that round it was a non event.

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I also fired some fairly anemic 124 gr FMJ consistent with federal American eagle or Remington green and white box FMJ. It cycled perfectly with those mid range loads, with less powder staining on the cases and less denting of the case mouths.

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The ejection pattern was consistently around 2 o’clock and fairly high. My patented brass deflector kept them all reasonably close to the bench and easy to police.

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In short, other than some early frustration with new magazines not wanting to feed truncated cone shaped bullets, and a harder than normal to adjust rear sight, it worked well. By the end of the season I was impressed with it in terms of both reliability and acceptable plinking and self defense/combat accuracy. I was impressed in particular with the excellent heat dissipation and the stability of the barrel with no change in point of impact as it heats up.

It’s also fun to shoot. The roller locked system works well with a broad range of ammunition and the recoil is noticeably less than my 8” barreled blow black operated AR-15 pistol in 9mm with the same 115 gr load.

It points well and balances well, but it has the typical HK ergonomic challenge. When carried with the sling configured for single point use the safety falls nicely under the thumb. That’s where you’ll want to move it to the fire position if you want to employ the weapon quickly as when your hand is around the grip the safety lever will be out of reach unless you have a freaky long thumb.
 
I once took the wrong Uke case to a band job and wound up in jail in a "no gun city".
Just kidding but I like the shelf idea.

Some load data for Uke below. :D
 

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Congratulations

That is a nice addition to the Family

The MP5 looks good in that soft Ukulele case.

I would buy one of those if I thought my MP5s would fit, the sticking point is the straight factory mags are probably too long to go where your curved mags are

A while back a member had a hard case where the manufacturer had fitted interiors. I should have kept better notes back then. Tough I am certain your case has smaller dimensions
 
BB57, I know a soy bean field when I see one. What part of NC are you from? Like your ‘range’ and thorough range report. I got a chance to fire a friend of my son’s real deal MP5 some years ago. That is a fast shooting gun. Something I learned that day was it’s rate of fire is determined by the ammo. The hotter the ammo the faster it runs. I couldn’t do much with it though. But it inspired me to build a MP5.45 upper for my ar pistol lower. Uses a dedicated greasegun mag lower. The bbl and bcg are Olympic Arms.
 

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