300 BLK Suppressed Mk48 – you know you want one

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Gem-Tech 300BLK UMG

You read that right. Gem-Tech, the Idaho-based silencer company, has built a suppressed 300 BLK “Urban Machine Gun” (UMG).

It’s belt fed, based on the Mk48 with a completely suppressed quick change barrel assembly. It’s been optimized to run on Gem-Tech’s proprietary 300BLK supersonic ammunition. The UMG, which has an integrated 300BLK titanium MG suppressor permanently affixed to the barrel, is unfortunately LE and military only. That ammunition, by the way, includes the supersonic 125gr Nosler 300BLK, the 147gr FMJ 300BLK (“for training”) and the Sierra Match King 220gr Hollow Point Boat Tail 300BLK for ballistic performance and BEOBG (Better Effect On Bad Guy).

Is it practical? Is it suitable for the average logistics ‘tail’? We have no idea, nor do we care. We want one, because Reasons – though the discussion about ‘practicality and field use’ the announcement started amongst our minions was interesting to say the least.

Gem-Tech 300BLK UMG2

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How do you see it potentially used? Feel free to speculate on everything from SOF missions in the Horn of Africa to SyFy Channel movies.

Check out the video:

ADM 1

You can learn more about online at www.GEM-TECH.com; follow ’em on Facebook via their official page www.Facebook.com/gemtechsilencer. Follow ’em on Instagram, #gemtechsilencer (http://instagram.com/GemtechSilencer) or on Twitter @GEMTECHSilencer (https://twitter.com/GemtechSilencer). If you’re really wanting to talk to someone, call them at 208-939.7222 and tell them you found their number on the wall at Nancy’s Squat ‘n’ Gobble.

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The Mad Duo and Gem-Tech

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13 thoughts on “300 BLK Suppressed Mk48 – you know you want one

  • February 13, 2015 at 8:14 am
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    I think there is a dedicated MG suppressor, much larger can if I recall correctly, that can keep up with full auto fire with super sonic rounds. Sub sonic rounds should not cause as much heat build up and Dan makes dimpled barrels with will be better for air cooling than a standard profile. I think it is well worth a test and report. I sure MGA will post a longer video as soon as they have time. Also I think Dan has an AAC can for his but I don’t know if he has access to a FA trigger pack.

    Reply
  • February 11, 2015 at 5:54 am
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    @Richard Yeah the Mk46 and 48 are loud bastards, and that is probably one of the reasons I loved them when I was younger. I did range test a Mk46 with a KAC SOPMOD suppressor and found it got too hot, too fast to be remotely practical because you had to keep the rate of fire so slow. It was fun though. What do y’all think? Maybe better in BLK (which I have never shot)?

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  • February 6, 2015 at 1:40 pm
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    Price wise, I pay .60 a round for 147gr FMJ and a little more for 220 Sub’s post panic prices are getting better and as the round get main streamed it will become even cheaper but I would think the price per round would be irrelevant to the agencies and operators that this type of weapon system would appeal to and old Uncle Sam should get a discount at 1 million round orders, LOL.

    Reply
  • February 6, 2015 at 1:26 pm
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    Here is the link to the one shooting subsonic 220’s: https://www.youtube.com/watch?v=Z8LTfLWpKrw&feature=youtu.be

    I think definitely SF house will buy a few. Just to save on hearing damage alone. I don’t know about you guys but I remember it was never fun to have your SAW gunner dump rounds near you, even with electronic hearing protection my ears would still ring. Now I’m older and can’t hear worth a darn.

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  • February 6, 2015 at 7:05 am
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    They should have called it a MK46 as it’s setup in that configuration.

    BUT

    If that is one of the US MGA built guns, it is also a MK48 receiver. They build their guns so that you can swap between 5.56 or 7.62 parts on the same receiver. Something that FN won’t do.

    But yeah, for 300 BLK you would use the MK46 parts/setup.

    Reply
    • February 11, 2015 at 6:03 am
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      Thanks for the learning, Dan. It would actually be awesome to be able to swap like that. Almost as awesome as two Kyrgyz hookers for the price of one. And no STDs! Win-win.

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  • February 5, 2015 at 6:58 pm
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    Ummm…. Is that not a Mk46?

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  • February 5, 2015 at 2:12 pm
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    Yes, it is more expensive than 7.62×39 but you get what you pay for. .300 blk was meant to utilize the far more accurate and versatile design of the AR platform while delivering the same terminal performance as an AK round, essentially giving the best of both world, and allowing any platform chambered in 5.56 ( such as the SAW) to be converted with minimal extra parts. 7.62×39 has proven unreliable in AR platforms, and uses completely different links and magazines, so the compatibility just isn’t there. Since the blackout’s parent case is 5.56, all that is required is a barrel change; same bolt, same mags, and it can use 5.56 links. In a belt fed platform it has a much higher chance of single round threat neutralization, because at longer ranges it is often only one or two rounds from a burst of automatic fire that hits the target. Belt feds were designed as suppression/support by fire weapons, not precision rifles so it is important to have a balance of accuracy by volume and making your shots count. Up close it also offers better barrier penetration and increased lethality against soft targets, which when under the influence of certain narcotics, which is often the case on todays battle fields, are almost unaffected by 5.56 unless the shot destroys the pelvis causing the target to involuntarily collapse due to skeletal structural failure, or destroys the central nervous system causing an instant shut down (t-box shots). Jeep- the point of suppressing it is to prevent the hearing damage that results from unsuppressed fire which causes the operator to have decreased situational awareness. The suppressor will also minimize ground disturbance, keeping a massive dust cloud from forming in front of the shooter which happens when firing unsuppressed on loose dirt /dust/sand from the prone. It also minimizes muzzle flash which is important for keeping your visual signature to a minimum in low light environments. And yes, it works reliably and consistently with subsonic ammo for those who are wondering.

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  • February 5, 2015 at 10:57 am
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    “year of the silencer” continues…

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  • February 4, 2015 at 1:12 pm
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    Ahh yes, 300 blackout. When you absolutely, positively need to pay 1 dollar per round for 762×39.

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  • February 4, 2015 at 12:03 pm
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    Not the first time it has been done…and with more attention to detail, I am sure. Mbinc, I believe was his screen name, made several semi auto 249’s and 240’s in various calibers. Nice novelty from Gemtech, who will not secure a contract with mil for these and market them to LE who have more taxes secured. At least the 240’s and 249’s produced by Mb are semi auto and can be owned by everyone.

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  • February 4, 2015 at 7:55 am
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    It would certainly make groundhog hunting more fun and I would finally be able to rid my beleaguered bird feeder of those pesky squirrels without disturbing my neighbors.

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  • February 4, 2015 at 7:37 am
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    Please enlight me about one thing. What’s the point of having such suppressed beast, if you use supersonic ammunition? Wouldn’t it be even more bad*ss with subsonic ammo?

    Maybe there is no subsonic in 300 ?? I don’t know…

    Reply

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