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Discussion Starter #1
Is there any notable difference from a S14 MK9K 3 lug and one of this years manufacture? I've been trying to buy one new but am not having much luck.
 

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You shouldn't settle for anything < S-15 or newer for the Gemtech MK-9K, if that's what you really want. As far as I've seen, Gemtech's supply to distributors this year have all been date coded S15. I went with S15 x2, both cleared form 3 and were delivered to my local SOT a couple weeks ago:

(S12 was the last year for the UMP .45 QD from Gemtech)

Changes for their latest MK-9K includes new packaging design I was told. For any of the latest revisions, I doubt even Gemtech could answer such specifics since they seem to be the least knowledgeable about their product, but there have been many changes to their 3-lug over the years (total of 5 variants pictured in this thread).
 

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No. Only 3lug has changed. SilencerShop has bought all of GTIs next run of MK9K. So might wait for them to list them or buy a NOS model
 

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Discussion Starter #4
Thanks for the info, I had a few dealers that said they have stock ordered in January that has still not arrived. I am first in line if/when those show up. However I wasn't sure if an S14 or S15 was much different. (Good info Neo S16 may not even exist yet, I didn't realize that)

I guess I'll just keep waiting and see if SS lists any or this shop gets their 7mo old order.
 

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Call Gemtech and see if you can buy their latest MK-9K 3-lug adapter? If so, it wouldn't matter what year it was made, so long as it's new. I bought my S05, in 2014. It was new, and cheap. I called GemTech to ask if it mattered, and was told the tube and baffles are unchanged (as of 2014, when I called) and only the 3-lug is different. Ive had no issues with my 3-lug, and I didnt want to wait until who knows when, to have a new batch made. And even now, SS said they bought their entire next run of MK-9K, so what does that mean for all the other dealers who have 2-3 on order? They have to wait for the 2nd production run on this low production volume suppressor? Sorta sucks for them....
 

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My limited understanding is the original 9mm 3-lug mount Gemtech used for their MK9K was the original Raptor mount. There were some issues with that mount especially with the heavier MK9K can, as the Raptor 40 has a bigger and stronger spring to hold the can onto the lugs. The MK9K went out of production. Gemtech developed the Raptor 40 as the MP5-40 and MP5-10 were all the rage. The .40 caliber MP5s uses the same lug configuration as the 9mm 3-lug except that the muzzle diameter is larger. So a 9mm 3-lug can can not be mounted on a .40 caliber 3-lug barrel. Gemtech designed a new .40 caliber 3-lug mount for the Raptor 40 to use with either a MP5-40 or MP5-10.

About 10 years ago, there was a resurgence of interest in a return of the MK9K into production. While the MK9K is an older, heavier design, for the deeper tone it produces. Gemtech decided to use the Raptor 40 3-lug mount on the MK9K when the MK9K was put back into production. The difference between the 9mm MK9K mount and the Raptor 40 .40 caliber mount is the "piston" (Gemtech's term for the part of the mount that goes over the muzzle of the firearm) in the 3-lug for the 9mm MK9K was made thicker to take up the diameter difference between the 9mm and .40 caliber muzzle diameters.

I'm fortunate enough to have found a .40 caliber MK9K (Gemtech only made a few). It was originally thread mounted on a MP5-40. I sent the can back to Gemtech and had a 3-lug mount installed. When I got it back it had a 9mm MK9K mount. I asked Dr Dater if I could buy a .40 caliber 3-lug mount. I was told that they no longer stocked the mounts. The only .40 caliber 3-lug mounts they had was on the Raptor 40s they had in stock. So the following April I bought a Raptor 40 during their "Gem Tax" promotion. When I got the can I realized that the only difference between my 9mm MK9K mount and the Raptor 40 mount was the inside diameter of the piston. So I bought two MK9K pistons, took them to a local gunsmith, and had one of the pistons inside diameter of the 9mm bored out to the inside diameter of the .40 caliber piston from the Raptor 40. So now I have a 9mm and .40 caliber piston so I can use both my .40 caliber MK9K on either 9mm or .40 caliber 3-lugs. Dr Dater told me not to use the .40 caliber MK9K with 10mm. So I use the .40 caliber MK9K for 9mm and .40 S&W. I had a thread I started http://www.hkpro.com/forum/hk-nfa-t...e-9mm-40-s-w-10mm-auto-3-lug-aplications.html with pictures showing the differences between the 9mm and .40 caliber pistons. I also have a couple of Gemtech 3-lug flash hiders that used the old 3-lug mount to compare the spring and piston from the old mount to the new mount piston and springs if anyone is interested. YMMV.

Scott
 

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I'm fortunate enough to have found a .40 caliber MK9K (Gemtech only made a few). It was originally thread mounted on a MP5-40. I sent the can back to Gemtech and had a 3-lug mount installed. When I got it back it had a 9mm MK9K mount. I asked Dr Dater if I could buy a .40 caliber 3-lug mount. I was told that they no longer stocked the mounts.
Scott
It's no wonder people complain about Gemtech so much. They mounted a 9mm 3-lug to your .40 caliber can? It doesn't get much goofier than that. How does the Raptor sound versus the MK9K?
 

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How does the Raptor sound versus the MK9K?
About a year ago I posted videos of my son shooting a MP5K with both cans using 147 gr Remington ammunition. Someone commented that he thought the two can were about as quiet as each other. That may be true in terms of measured dB levels but the tone of the two cans are quite different and noticeable to the shooter. My best explanation was that I thought the Raptor can had a little more clap or crack whereas the MK9K was more of a thud.

You should be able to find the vids via a search. There are also on You Tube.
 

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I love the idea of the MK9K, I hate that it's unobtanium. Limited production runs, lack of customer support, lack of legacy support, etc.... I went with a bowers Ver9s in the mean time. I'm sure i'll eventually end up with an MK9K, but who knows when that will be. Point being that if you're waiting for an MK9K, you'll have a longer wait or a more expensive wait than you care to have. There are other high volume options that have great track records of customer service and availability.
 

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I have an original S08 and it runs fine. I see no reason get the latest 3Lug when the old one runs fine.
Oh you youngins! My MK9K is an S94 and uses the original Tim Bixler, SCRC, 3 lug twist-on coupler. It has no springs, plungers, or plates. It is much shorter than any of the spring loaded couplers that came after. It locks up nice tight and has never needed any attention. I got my MK9K back in the day from Dan Shea for $300, or so.
 

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I have an original S08 and it runs fine. I see no reason get the latest 3Lug when the old one runs fine.
Exactly. Paid $575 for mine, the guy had a bunch in stock. Didnt mind it being 9yrs old, brand new in the plastic, and not having to wait for GMT to have another run, etc etc...
 

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Oh you youngins! My MK9K is an S94 and uses the original Tim Bixler, SCRC, 3 lug twist-on coupler. It has no springs, plungers, or plates. It is much shorter than any of the spring loaded couplers that came after. It locks up nice tight and has never needed any attention. I got my MK9K back in the day from Dan Shea for $300, or so.
Got that mount too.

It is on my John's Guns MP5 can.
 

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Discussion Starter #15
There's a couple on GB as we speak. None are mine and I do not know the sellers!
I've spoke with both sellers. Side Arm SAMs is 1/2x28 threaded not 3-Lug and the other was the one I started this thread considering. I'm not sure what generation mount is on that S14? Perhaps Neo knows more about it than I can tell from the photos?

Like has been mentioned I may just get the S14 and deal with the "old" mount. I'm sure it functions just fine.
 

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I wouldn't have any reservations with any generation of GemTechs 3-lug mounts. My S05 shoots great. Locks on tight. No issues with my MP5 full-size on a factory HK barrel, or my Mp5K clone barrel from RCM. With the MK-9K, I would get it as cheap as you can, for a new suppressor.
 

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It's no wonder people complain about Gemtech so much. They mounted a 9mm 3-lug to your .40 caliber can? It doesn't get much goofier than that. How does the Raptor sound versus the MK9K?
If you missed in my post, Gemtech didn't have any .40 caliber 3-lug mounts. Now if the "piston had been pulled and machined out to .40 caliber specs, then I would have had a .40 caliber mount. I had to buy the Raptor 40 to figure that out. As far as the sound difference, I think:

My best explanation was that I thought the Raptor can had a little more clap or crack whereas the MK9K was more of a thud.
is a great description of the sound difference between the Raptor and the MK9K.

I've spoke with both sellers. Side Arm SAMs is 1/2x28 threaded not 3-Lug and the other was the one I started this thread considering. I'm not sure what generation mount is on that S14? Perhaps Neo knows more about it than I can tell from the photos?

Like has been mentioned I may just get the S14 and deal with the "old" mount. I'm sure it functions just fine.
It is my understanding that the SXX number is the year the can was produced. So I would think a S14 was made in 2014, which would be the new heavy duty style 3-lug mount. I bought the MK9K in 2009 I think. YMMV.

Scott
 

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The Omega 9k for the Win!! I am not sure of any noticeable benefit that the MK9K bring to the table?? Readily Available, Great CS, Great Suppression, much smaller package.. Call me crazy, not sure why anyone would want to deal with Gemtek and the MK9K?? YMMV
 

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Discussion Starter #19
The Omega 9k for the Win!! I am not sure of any noticeable benefit that the MK9K bring to the table?? Readily Available, Great CS, Great Suppression, much smaller package.. Call me crazy, not sure why anyone would want to deal with Gemtek and the MK9K?? YMMV
Good point. I will be buying an Omega 9k as well, just like the large volume old school look and feel of the MK9K.

"There's no replacement for displacement"
 

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The Omega 9k for the Win!! I am not sure of any noticeable benefit that the MK9K bring to the table?? Readily Available, Great CS, Great Suppression, much smaller package.. Call me crazy, not sure why anyone would want to deal with Gemtek and the MK9K?? YMMV
Internal volume. That's why.
 
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