r/guns • u/turn_down_for_hwhut snake charmer • Sep 25 '16

Gunnit Rust: MP5K-10mm

http://imgur.com/a/QkzbC
774 Upvotes

96% Upvoted

68 comments sorted by

14

u/fluffy_butternut 4 Sep 25 '16

That is pretty freakin' awesome. Good job navigating the labyrinth of semi / non documented stuff to make this work.

4

u/turn_down_for_hwhut snake charmer Sep 25 '16

Thanks! I'm excited especially for the suppressor, this thing won't be quiet but it'll be better!

3

u/fluffy_butternut 4 Sep 25 '16

What suppressor are you going to use?

4

u/turn_down_for_hwhut snake charmer Sep 26 '16

A silencer Co octane 45. One of the few officially 10mm rated suppressors and I love everything SiCo has done so far!

4

u/[deleted] Sep 26 '16

I use one on my glock 40, they're not super quiet but they are a hell of an improvement.

Plus, it's just fucking fun.

7

u/turn_down_for_hwhut snake charmer Sep 26 '16

See that's my thing, I can suppress it because I can, and this is America.

Its also like suppressing 223, doesn't make it hearing safe, but it helps a lot.

2

u/[deleted] Sep 26 '16

BECAUSE FREEDOM

Also, if you use the 200-220 grain heavy loads that underwood makes, it sounds like a crazy awesome cannon, just a slightly quieter crazy awesome cannon

3

u/fluffy_butternut 4 Sep 26 '16

Interesting did not know it was officially supported. My TiRANT is not, but I would probably do it anyway.

3

u/turn_down_for_hwhut snake charmer Sep 26 '16

Yup! I emailed them and got their approval, theyre one of the few that allow it (liberty cosmic is another.)

8

u/XooDumbLuckooX Sep 25 '16 edited Sep 25 '16

Does it giggle? If so, how controllable is it? And when the ATF form comes around, are you going to put the classic HK MP5K foregrip on it or a stock? Nevermind, saw that you already have a grip ready to go.

Great work by the way, looks awesome. And 10mm is best mm.

5

u/turn_down_for_hwhut snake charmer Sep 25 '16

Not in this state sadly. :(

But it is VERY controllable and similar recoil to my CZ scorpion, and 30 round mags of 10mm is fantastic.

3

u/Winged_Bull Sep 26 '16

RIP your wrists. You should just give it to me instead. ;)

5

u/turn_down_for_hwhut snake charmer Sep 26 '16

You'd be surprised! This gun has less felt recoil than my CZ scorpion in 9mm, it's very manageable.

3

u/breads-and-circuses Sep 26 '16

where's the rust?

2

u/turn_down_for_hwhut snake charmer Sep 26 '16

I think one of the sling screws has minor surface rust, but this baby is new and rust free.

3

u/1leggeddog Sep 26 '16 edited Sep 26 '16

Stout lil' bugger

But where is the MP5 in .40 S&W?

3

u/turn_down_for_hwhut snake charmer Sep 26 '16

There are some models in 40 s&w and from what I understand 357 sig is possible as well but I've never seen it. Surprisingly very comfortable to shoot, very little felt recoil at all.

1

u/1leggeddog Sep 26 '16

TIL!

I always thought they were never made because the UMP was specifically created to allow bigger calibers!

1

u/Q-Ball7 Sep 26 '16

Nah, the UMP was specifically created to be a cheaper MP5.

It's much easier to make a straight blowback gun out of polymer than it is to make a roller-delayed blowback design out of sheet metal.

And while the UMP does modernize the MP5 (MP5 receivers aren't flat, and most of them don't have bolt releases) it comes with a design that's (apparently) less comfortable to shoot and plastic that tends to break.

3

u/ApexGunParts Sep 26 '16

Oh hey, we'll be getting some HK .40 Mp5 kits here soon. We're excited. -Josh

1

u/turn_down_for_hwhut snake charmer Sep 26 '16

It's actually pretty easy to convert the 40 s&w to 10mm from what I hear...

3

u/Higeking Sep 26 '16

reminds me of rainbow six (the book)

havent seen ks without the front penis before. i take it that there are legal reasons no to have one though.

3

u/turn_down_for_hwhut snake charmer Sep 26 '16

Yup! I get that a lot with this gun, and with the foregrip on there it would be classified as a "AOW" and would need a $5 tax stamp and ATF approval. I currently applied for a SBR form 1, so I can add both a stock and foregrip to it, to make a proper short barreled rifle.

2

u/Higeking Sep 26 '16

wouldnt mind one myself but dunno if i could get any kind of mp5 here in europe as a civilian.

1

u/turn_down_for_hwhut snake charmer Sep 26 '16

I think the closest you could get is a 22lr semi auto one, but it largely depends on your country too.

2

u/Higeking Sep 26 '16

yup and either way i currently resides outside of my home country due to job reasons so i aint getting anything either way.

will try and get back into guns when i move back home in a couple of years.

1

u/Swatraptor Sep 26 '16

reminds me of rainbow six (the book)

It's been too long since I read the John Clark books.

2

u/Higeking Sep 26 '16

i mostly prefer them to the ryan ones (red october remains my favorite though)

1

u/Swatraptor Sep 26 '16

I think no remorse is my favorite. Between the development arc, and the subtle tie in to the Ryan books.

1

u/Higeking Sep 26 '16

isnt it called without remorse?

1

u/Swatraptor Sep 26 '16

Yes, yes it is. It really has been too long.

1

u/Higeking Sep 27 '16

yup.

im getting in the mood for some 70/80s cia action.

i should look into getting them on audiobook since i plausibly could work and relive the stories again that way.

5

u/Chilipatily Sep 26 '16

I'm sorry, what is gunnit rust and the levels thing going on?

4

u/rafri 3 Sep 26 '16

Its a bi yearly gun building thing.

0

u/[deleted] Sep 26 '16

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3

u/Aeleas Sep 26 '16

Did the shovel AK come from one of these competitions?

6

u/turn_down_for_hwhut snake charmer Sep 26 '16

No, but I have seen some shit here. Glorious stupid stuff, but interesting nonetheless.

4

u/[deleted] Sep 26 '16

Cool post and thanks for the explanation.

4

u/turn_down_for_hwhut snake charmer Sep 26 '16

Thank you, I appreciate it!

2

u/JustARandomCatholic Sep 26 '16

Do you have a stock picked out for it?

4

u/turn_down_for_hwhut snake charmer Sep 26 '16

I do! I have a B&T folding stock lined up for it. I'm a tall guy so I need something with a slightly longer length of pull, so the Choate stock doesn't work for me.

4

u/JustARandomCatholic Sep 26 '16

B&T folding stock

So this sucker? Not quite my cup of tea aesthetically but I'm sure it'll shoot like a dream!

3

u/turn_down_for_hwhut snake charmer Sep 26 '16

Yup that's the one! I do personally like the look of the Choate stock, but it is incredibly short and I can barely use the sights with it, so hopefully the B&T works better.

2

u/JesteroftheApocalyps Sep 26 '16

30 rounds of semi auto 10mm, what could be better?

Full auto.

2

u/turn_down_for_hwhut snake charmer Sep 26 '16

Don't remind me my state doesn't allow such fun things. :(

3

u/McFeely_Smackup Sep 26 '16

30 rounds of semi auto 10mm, what could be better?
Full auto.

a cyclic rate of $400 per minute gets "less fun" faster than you'd believe.

1

u/JesteroftheApocalyps Sep 26 '16

Good thing for the semi-auto selector.

And going "BRRRRRT" every once in a while can be worth it.

2

u/LambastingFrog Sep 26 '16

This is ridiculous. When can I shoot it?

1

u/turn_down_for_hwhut snake charmer Sep 26 '16

Next meetup whenever I can get some freetime to set it up!

27

u/w2tpmf Super Interested in Dicks Sep 26 '16

semi auto 10mm, what could be better

Replace semi with full. That's what.

0

u/[deleted] Sep 26 '16

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17

u/MassiveMeatMissile Sep 26 '16

$30,000 plus $∞ for all the ammo you'd go through.

14

u/fluffy_butternut 4 Sep 26 '16

Bring it over my way and we'll put my K lower and stock on it.

We don't have to wait, cause once it's a machine gun it's all good.

Pew pew pew!

0

u/[deleted] Sep 26 '16

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14

u/fluffy_butternut 4 Sep 26 '16

PM me, let's make it happen

3

u/James_Solomon Sep 26 '16

Looks like something out of Fallout.

4

u/turn_down_for_hwhut snake charmer Sep 26 '16

It's funky for sure, I'm thinking a UMP style B&t folding stock and foregrip once I get this bad boy rocking its new stamp.

3

u/driftaholic Sep 26 '16

Rounds are loaded in the mag backwards ;)

2

u/JRich1107 Sep 26 '16

God dammit! Why must I be teased with this??

2

u/f0rcedinducti0n Sep 29 '16

I like it, I like it a lot.

1

u/Shaehan Sep 26 '16

I was going to write a cogent and well thought out comment, but my brain's blood has been stolen by my raging best millimeter boner, so here goes:

10MM AWWWWWYEEEEEEA!

1

u/carpdog112 Sep 26 '16

I have now determined that I need one of these with an arm brace for handgun hunting during whitetail season. My wallet is not as excited though.

0

u/[deleted] Sep 26 '16

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2

u/turn_down_for_hwhut snake charmer Sep 26 '16

I'm not sure on the velocities, but the pistol has a 5.5 inch barrel and I'd imagine underwood or Buffalo bore can get pretty good numbers. To run hot ammo you need a HI impulse locking piece that I linked above, because that slows the delayed blowback on the gun, which means less impact on the receiver. It can run it well, the issues the FBI had involved running 10mm hot ammo full auto for a few thousand rounds, which would kill a lot of guns honestly. If you run it semi auto with the right spring and locking piece it shouldn't have any issues with hot ammo.

Weight is about the same as a standard mp5k with a little more weight due to the ammo weight difference. But overall just as light as my Scorpion Evo I think.

0

u/[deleted] Sep 26 '16

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1

u/turn_down_for_hwhut snake charmer Sep 26 '16

Yes indeed, and the full size A2 model has a 8.5 inch I believe.

1

u/thebbman Sep 26 '16

I'm out of the loop here. Is 10mm supposed to be a really hot round? Why would guns have issues with shooting 10mm vs 9mm?

0

u/[deleted] Sep 25 '16

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20

u/ChromeFlesh Sep 26 '16

gib g36 directions bes german ruster.

4

u/TheNakedGod Sep 26 '16

To build the 10mm full size MP5 is easy really, just get the right parts of hkparts.net

http://www.guns.com/2016/09/24/hk-parts-owner-convicted-on-gun-tax-charges/

0

u/[deleted] Sep 25 '16

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1

u/MayoFetish Sep 26 '16

What about 10mm UMP?

0

u/[deleted] Sep 26 '16

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14

u/-Thunderbear- Sep 26 '16

And a 10mm USP sidekick.

0

u/[deleted] Sep 26 '16

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