Quoted:
My $0.02 that no one asked for as a disinterested party:

It seems to me that the seller likely used intentionally vague wording knowing that true HK people would know this is not genuine HK and interpret his Gunbroker ad that this was "for" an HK, even though the word "for" is conspicuously absent from his listing.  Those who are looking for the genuine HK made case, but not a true HK aficionado (apparently, like the OP), would read the ad exactly as written which certainly does suggest it's made by HK^(*).

If he's selling so many high-dollar items on GB, StG, etc, why didn't he sell this specific one through the typical channels he uses to sell things?  Don't real HK items sell for considerably more $$ (and faster without fees) if you list them on the HK boards, or StG?  That's a rhetorical question, because yes, of course they do.  The seller probably had an inkling (or maybe he flat-out knew) that this was not the real HK case and was banking on a Gunbroker bidder also not really knowing - and understanding that he couldn't advertise it where people could publicly post questions for others to see/respond to, as that would result in it being clearly identified as not genuine HK.  Further, if there was an issue with the sale on Gunbroker, he didn't have to sully his reputation on the other sites he sells on, since his already somewhat tainted Gunbroker reputation would be the only thing at stake.  If the seller bought it new as he states in the ad, he certainly should be able to provide more information on the provenance of the case.

My guess is that the case itself (gun-related hardware excluded) was made by Hofbauer - and some company other than HK purchased those cases from Hofbauer, and used their own sourced gun-related parts to assemble these to work with the HK weapon systems.

Bottom line is that OP should have done more due diligence before buying, as seller's phone number and email was clearly available in his ads and he invited questions prior to purchase, but anecdotal evidence from seller's actions (his questions on other sites about the case; StG, HKPro, etc) suggest that the seller likely knew that this case was not the authentic HK case and crafted his ad very deliberately to try to maximize his profit while retaining the ability to plead ignorance along the lines of "I told you what these other HK people told me".

When you question the seller with all the links to his HKPro, StG posts about this, how can he possibly respond other than, "yeah, I had an idea it wasn't made/assembled by HK".  You did your work after the fact and backed him into a corner where he has two options:  ignore you and consider the sale done, or work with you to come to an amicable solution.

*If I tell you that I am selling a vintage "Armalite Bolt Carrier Group", and when you buy it, the bolt itself is made by Bushmaster, the carrier is made by Armalite and the firing pin and other small parts being Colt manufactured, would you feel that you were deceived?  After all, it does fit in an Armalite rifle, which is what I said, right?  If you were buying it to just use it, you may not case - but if you were buying it because your 100% Armalite rifle needed an authentic Armalite BCG, you would probably feel deceived.

One last comment @SFHC - seeing what you wrote here, it seems you have a vested interest in declaring the case "genuine HK" at any cost, because you have one.  Though you continue to cherry-pick statements that are out of context, you still haven't acknowledged that there is an ARMS mount in this case.  Are you suggesting that HK purchased and used ARMS mounts for these?

Quoted:

It's not. And the biggest clue is when people start saying bullshit like 'oh, the seller didn't explicitly say "XYZ"', or that "this one piece was technically made in Germany, even if every other piece was sculpted from a turd pushed out in Somalia!". That's when you know you have liars makes excuses for other liars. When you get to the point where people are trying to point out how the seller, in a certain way, didn't completely lie about what they were trying to sell, you know you have slimy fucking shills for borderline (or just straight-up) criminals.

Quoted:
Sadly, the OP didn't do his research.

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I think it has been mentioned but if the seller were reputable and not a scammer then he shouldn’t have any issue with a refund. If it were genuine then the seller should have no issue taking it back. Says it all to me where the sellers intentions were.

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I think it has been mentioned but if the seller were reputable and not a scammer then he shouldn’t have any issue with a refund. If it were genuine then the seller should have no issue taking it back. Says it all to me where the sellers intentions were.

Quoted:

And thats why you look at a sellers feedback, inspection and return/refund before buying.
Seller didn't have any, buyer didn't bother to ask.

Quoted:
Shitshow all the way around and a little bit of homework would have been very useful.

Quoted:

See the auction I linked above.....scammer?

Quoted:

Extra homework would have been good for the buyer. However, that doesn't excuse the seller of being intentionally obtuse about the thing he was trying to sell for twice the value it actually has.

That is the crux of the debate. The seller intentionally tried to disguise the origin and value of the product in order to fleece extra money from the unaware. That's pretty straightforward.

Quoted:blah blah

Quoted:
So, OP certainly has some culpability in the matter, buyer beware and all that. Most of us would have done homework (lots of it), before dropping that kind of $$$.

That said:

1.) Seller has been shown to clearly know the difference in the HK and non-authentic cases, proven by multiple links in OP
2.) Seller clearly was crafty with the wording in his GB listing. Look at his asking price, and ask yourself why?
3.) Seller has been a douche canoe to OP since getting the money, and is playing dumb

Caveat emptor is strong, but since Seller did what he did, he can deal with scorched earth if OP decides to expose his scam IMHO.

If I was Seller, I doubt I’d want my reputation tarnished. Clearly he is OK with it though, or he wouldn’t have posted the GB listing with the wording and price that he did.

Quoted:

Not a HK expert but this seems to been the case, I think for $3k I would have asked many questions. The first question would be to confirm this was a authentic HK made case, second WTF makes it worth $3k

And I would had to have some HK buddies check out the ad as I know very little about HKs.

Quoted:
Heckler & Koch MP5K / SP89 / SP5K Briefcase.................is this genuine, authentic factory HK?

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What do the “authentic authentic” cases sell for?

If the “replicas” sell for what the OP paid what do the real ones sell for?

Quoted:
The guy you bought this from is well known in NFA circles as a total whack job. Possibly bi-polar or manic depressive, whatever it's called nowadays. He has a lathe though, so he thinks he's hot stuff. Totally delusional.

Quoted:
I'm in the market for an MP5 operational briefcase, and I didn't buy that one because it was clearly made by Todd Bailey.

Unlike the OP, I've been reading about these cases for years while waiting for one to come along.  I'd probably be happy to buy a Todd Bailey case, if it were 1/2 or 1/3 the price of a proper German case... but I know the difference before I bid.

The seller wrote the add in a way that while technically accurate, would allow a buyer who had not done his homework to assume it was a real case.

The seller is a douche, and the buyer is a fool.

Quoted:

Wrong.
I'm not victim shaming. Just pointing out that the item in the GB listing is accurately described. That the OP wanted a factory HK MP5K briefcase is immaterial.

Quoted:

I'm not shilling for the seller and don't call me a criminal. I don't know him, and don't give a rats ass if the seller ever sells another item on GunBroker.

The OP got exactly what was pictured in the GunBroker listing. The OP assumed it to be a genuine, authentic, real deal, whoopie pie HK factory authorized briefcase because that's what he wanted. Whether through lack of research, lack of knowledge or simply not bothering to ask the seller "Hey, this is a real HK factory briefcase, isn't it?" That would have likely ended this drama before it ever started. But he didn't do that did he?
OP wanted a genuine factory HK MP5K briefcase and got a "Like new Hofbauer MP5K Briefcase made in German." because THAT MY FRIEND IS THE DESCRIPTION.
Reading is fundamental, wishing is not.

Quoted:
Your analogies aren't really accurate.

Let me try an analogy: you call pizza hut and order a meat lovers pizza, you get a double pepperoni pizza. The pepperoni pizza isn't worth what they charged you for the meat lovers, after taking a bite of it you realize it's not what you wanted. The store won't give you a refund.

They're both pizzas. They'll both fill you up. Some people don't mind double pepperoni.

You're still mad because you now realize you REALLY wanted that meat lovers pizza.

Your roommate offers to buy the pepperoni pizza for $10. You're only out a couple bucks.

You post in GD and everyone hates pizza hut.

You decide to shop at papa johns.

Papa Johns $$$$$

Quoted:
Your analogies aren't really accurate.

Let me try an analogy: you call pizza hut and order a meat lovers pizza, you get a double pepperoni pizza. The pepperoni pizza isn't worth what they charged you for the meat lovers, after taking a bite of it you realize it's not what you wanted. The store won't give you a refund.

They're both pizzas. They'll both fill you up. Some people don't mind double pepperoni.

You're still mad because you now realize you REALLY wanted that meat lovers pizza.

Your roommate offers to buy the pepperoni pizza for $10. You're only out a couple bucks.

You post in GD and everyone hates pizza hut.

You decide to shop at papa johns.

Papa Johns $$$$$