Butz Choquin Marco D + 9mm filter pipes Questions

Hi guys,
Wondering if any of you members of this esteemed forum own a Butz Choquin Marco D, because this pipe is proving to be quite a head-scratcher for me as my first 9mm filter pipe, and I definitely have some questions! I received it in the mail after buying it online, and was very excited to take it apart and look at it all and then smoke it. I disconnected the stem to discover what I believe is an "adapter" or "spacer" inside the stem - it is a hard brown piece of plastic with an airhole through it that fits snugly into the stem. This is not what is referred to as a 'filter', correct? Those are disposable as far as I always thought.
My predicament, if it even is one, is that using both a savinelli 9mm filter or this 'adapter' that came with the pipe leads to the pipe not drawing when I put the tenon all the way into the mortise. I think I understand why this happens - the adapter/filter is pressing flush against the bottom of the chamber under the draught hole (it is an oom paul; ive never owned an oom paul and have never seen a pipe carved like this in person yet), leading to zero airflow to the draught hole above. The pipe pulls PERFECTLY when I take the tenon a bit out of the mortise, but it is a really noticeable amount (the decorative band is not even flush to the mortise with the way it has to be), and I am hard-pressed to believe that this is supposed to be like this for me to smoke this pipe. Does this pipe REQUIRE only butz choquin 9mm filters? Am I a slow learner, haha? Please enlighten me, lovely folk. Happy smokes, everyone.
Edited to add the following: OH - what is also mystifying me is that, with NO adapter or filter at all, when I connect the stem and the bowl flush, the way it is supposed to be, the way the pipe is shown assembled online, it will not draw. Total resistance. That I have difficulty understanding, because there is space in the chamber for an addition 1/4inch of adapter, but when I put the tenon all the way in with no adapter, no air makes it to the draught hole. What the hell...

Yes, this is concerning, and what is more concerning (and until your response I did not want to consider this possibility) is that I got this pipe in an order of two pipes from a low-volume Amazon retailer (not sure why I did that...silly me), and the other pipe, which was supposed to be a new Butz Choquin Gentleman No. 2 in black, appears to have arrived a used BC Gentleman Noir. 5. So, this order is messed up, almost maliciously so, because it felt like they ran out of BC #2s or misadvertised in the first place and just threw something into the box that looked the part, and now I am starting to think maybe they sent a somehow flawed Marco D as well? But that almost seems preposterous, this pipe looks perfect aside from this issue, having worked in customer service for many years I still must explore that this is somehow user error, but don't know how to proceed....nor do I know how to describe this issue in my refund statement until I understand this :S
Edited to add this: Thank you for your response by the way - I will provide a photograph and perhaps it will shed some light. What does not make sense to me is that the draught hole is so close to the top of the chamber, because it appears that the tenon just completely blocks it by sliding into the mortise. If there is a flaw here, I imagine it is in the location of the draught hole, and if that is indeed the issue this is a fatal, critical flaw.

Olko,
Yes, sorry, 9mm refers to the width, doesn't it? I am new to posting photos here, but have a few key ones that I will try to get up.


This is meant to illustrate the depth of the draught hole chamber, I know it can't quite do so effectively but I tried.


This is the ONLY way I can get this pipe to draw with filter, adapter, or neither. Notice the tenon is not fully in, considerably not fully in.


Pipe in fully assembled form, with decorative band flush to shank. It would be nice if I could smoke it like this, haha.


Along the lines of the theory that I'm somehow getting screwed by this retailer, I have noticed just one other weirdness with the pipe, and it is this weird, hard crud/debris inside the mouthpiece...but it is an unused pipe, so what could it be?

Panhandler,
I have had fantastic experiences with Tobaccopipes - lately I have been on a spree and have placed orders with several different places, but yes, I also succumbed to this Amazon pipe from god-knows-who...I think I need to get an immediate refund, and I think the issue is unambiguous as you say, just difficult to believe - the stem is bottoming out in the shank and blocking the draft hole. Would love to hear your further thoughts in light of photos.
It was also my thought that, if I could not get a draw with the stem all the way in WITHOUT an adapter or filter, then a filter or adapter certainly wouldn't help, only hurt, seeing as this is a space-inside-the-shank issue.

OK, thank you, I thought this might have been some eccentricity of oom paul's I was unaware of, but this is BS and I have to process this refund for sure. That's what you would do in this situation, yeah? Pricey pipe for totally unsmokable, lol.

Together with stem crud, I am not happy, so this one is going back along with the mistaken Gentleman No. 5. A shame, as I was looking forward to smoking this pipe.

Lol, yeah, it was driving me absolutely nuts. I'm looking at it and am like: "OK, that can't make sense...but what if there is something I don't know?!!!" The anxiety-trap always makes one doubt common sense. Would love to hear from others as well. I have been lurking for quite a while, have learned a ton around these parts, but these are some of my first posts, hoping to do an intro soon!

Now that I know I will be returning and have the freedom to consider another pipe, it's still very likely I will get a Marco Panhandler, BC is one of my favorites, pretty indeed. My one trepidation is bowl size, and that's what oom pauls are for I suppose, but my larger pipes very rarely get smoked, I notice. My favorite pipe hands down right now is the BC Gentleman No. 2 nosewarmer (I was trying to order one in black for my friend with this failed order just so he could have the experience), and its moderate bowl size is just one of the things I love about it.
With respect to the original post, so far I tend to agree with you guys in every way and am for sure refunding...kind of fiendishly excited because, with a whole new pipe order on some other site, I will be able to stock up on accessories/a blend or two more with the free ship to boot Every cloud has a silver lining I suppose.
Olko, thank you for going in-depth on filters, this is useful to me - as I've mentioned, I have never owned a filter pipe.