Mini Manual Machine AR-15 from ECCO Machine – Home-Built Awesomeness

I continue to thank my lucky stars that in the United States one is allowed to “manufacture” their own firearms for personal usage. Without that key provision, many an aspiring firearms enthusiast and designer would be otherwise dissuaded from pursuing innovative designs or personal dreams which in the case of ECCO Machine is a bit of both.

ECCO is a fantastic little shop that uses manual machines to create some intricate little firearms, primarily focusing on rimfire weapons. I’d like to repeat that – ECCO uses manual machines, which is incredibly skill and time-intensive.

Recently, Mark Serbu (of Serbu Firearms) spent some time with ECCO machine taking a look at some of their latest creations. One of the first to be shown off is an ultralight 22 rimfire rifle which TFB has covered previously. Interestingly, the bolt-action 22 is manufactured of ABS plastic which was polished by leather.

However, starting at about 6:34, the “Tease of the Century” was debuted as a mini repeating AR-15. While still a work in progress, the little weapon shows what ECCO is capable of and while not shooting due to minor issues, is a semi-auto work in progress.

Here’s to hoping that ECCO decides to go get a manufacturing license and productize these little wonders!

Nathan S

One of TFB’s resident Jarheads, Nathan now works within the firearms industry. A consecutive Marine rifle and pistol expert, he enjoys local 3-gun, NFA, gunsmithing, MSR’s, & high-speed gear. Nathan has traveled to over 30 countries working with US DoD & foreign MoDs.

The above post is my opinion and does not reflect the views of any company or organization.


  • 22winmag


    • hikerguy

      Could not have thought for a better word than that. Elves and leprechauns of the world have their own AR now.

  • Hem90

    The older I get the more I wish I had the opportunity to do manufacturing type clases in HS as opposed to all the “honors,” BS that only looked good for college.

    • USMC03Vet

      Shop class was awesome. Got do use dangerous tools to make tools. Dem lathes!

      • Hem90

        I only had enough extra credits for wood shop and a couple art classes. Both were more useful (I was a tattoo artist at a local shop to pay for college) than math classes that were harder for the sake of being harder.

      • Jim_Macklin

        Back in the 60’s the 7th and 8th grade boys and girls walked about half a mile from the elementary to the senior high school every Friday afternoon. The boys did shop. That included metal work including melting 20 pound blocks of aluminum and casting ash trays and such. We also did wood shop. The girls did home eck what ever that was.
        But they opened a new junior high for 7th through 9th grade and the new building was without a shop class.
        Shop class was dangerous, a friend of mine was showing off during the walk back to the elementary school [ where we had to finish the day ] and he fell of a railroad trestle and broke both his arms above and below the elbow..
        He was stupid and careless, He cut off most of his left hand the next summer at his uncle’s place using a radial arm saw. A few years later he wasn’t drafted. Several other classmates died in Nam.

    • Seth Hill

      There are always classes at community colleges and trade schools. I have been thinking of taking some after I finish my MBA.

      • Hem90

        That’s what I may do. I have picked up some stuff since HS here and there. I’m working on a graduate degree now as well. It was more an observation than it was a personal plea.

  • USMC03Vet

    Looks like a prop for TLC’s little people show.

  • bsk

    If you can manufacture an .22 mp7 probably people will like it. But 3 man inside a car in public parking with guns… seems you will roob a bank …….:)

    • Stephen Paraski

      .17 HMR.

    • DanGoodShot

      How do you “rood” a bank? 😉

      • Spelling Nazi

        You can’t even spell “roob” correctly.

        • DanGoodShot

          Umm.. thet wuz da pouint… it’s is calleb a joek. Yurdy har har!

  • EdgyTrumpet

    These would come in handy if I ever needed to outfit an Oompla-Loompa death squad.

    • John

      Bwahahaha! LOL!

    • GaryOlson

      Arming gophers to make for detente on the prairie

  • Michael R. Zupcak

    I absolutely believe that a functioning version of that (albeit with CNC-grade tolerances) that’s offered in a few different Cerakote colors would sell for $5k+ easily.

    You could offer them in classic M16 style with plastic handguards, modern quad rail or Keymod versions, etc. Personally, I think a mini M16A2 clone would look so amazing.

    • PersonCommenting

      Idk why but I love mouse guns. A mouse rifle would be pretty neat. One of a kind and there are more weirdos way more into it than me, 5k to the right buyer easily. Id throw down a couple k.

      • Tom1003

        5k…… you jest?

  • George Smythson

    pretty amazing skill…

  • DanGoodShot

    The hearing protection act… IF big IF it passes it’s going to take a couple/few years to happen. People need to remember this is the US government we’re talking about. Working at the speed of tortoise. Also consider this. How often have they actually given us mere citizens back freedoms that they’ve taken from us.
    On snother note; this guy is extremely talented. I love checking out his videos.

  • st381183

    Mark Serbu just comes across as pompous in this video. The way he talked to Ely was rude. Kinda turned me off to Serbu.

    On the lighter side that guy makes some pretty cool stuff that I can’t make and Serbu should have been offering him a well paying job.

    • gusto

      not mention he is egging on that kid that will blow himself up soon

    • Bierstadt54

      I’ve gotten the impression the the guy is kind of an ass; nothing in this to change that view.

    • Longhaired Redneck

      That’s exactly what I was thinking while watching. Serbu was insulting the guy with so many backhanded jabs that I turned it off.

      Up until a couple of years ago I worked at a small shipyard in Seattle that had a huge machine shop onsite. There was not a single digital machine in the place. There were three extremely talented and aging machinists in the shop, but they couldn’t find any new help. All the kids that walked in the door claiming that they were top guns ended up quitting. They couldn’t do the simplest manual machine projects because they had been taught how to run a CNC machine, not how to be a machinist. One “master machinist” quit after four hours on the first day. He went to lunch and never came back. Mark Serbu is that guy…

  • Bierstadt54

    That is absolutely adorable!!!

    Never thought I’d call an MSR adorable…

  • Friend

    I saw this on ARFCOM before it was cool…

    Actually was pretty neat though. The guy was trying to get it classified as a handgun, given that the barrel is 7.25″ long and you can’t actually use the stock because it’s so short. The intention was a perfectly 50% scale M4, which other that being a rimfire .17 Remington he seems to have got pretty close too.

    He even built the functioning tiny red dot himself.

    • AHill

      *it shot Mach 2 (.17HM2)
      But yes I do recall that saga long ago. I wonder if the ATF ever got back to him after the thread died… Hopefully with a letter and not by shooting his dog.

  • El Duderino

    Stuart Little: First Blood

  • Blake

    Midget mall ninjas of the world rejoice!

  • Colonel K

    That’s neat, but if you really want to be impressed, shoot a miniature full auto Tippman 1917 or 1919 in 22LR, or his M2 in 22 magnum.

  • Johnny Lodern

    he doesn’t mention but what is that Mini AR going to fire, 17 HMR?

  • Julian C

    Great stuff but it was made really specail by that angelic little face in the back seat!