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  1. #1
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    ECCO Machine 51T to Omega threads/Plan A

    ECCO AAC Mini-4 51t to Plan A Conversion


    AAC 51t Brakeout: 4.2oz
    Old weight: 14.0oz
    Total: 18.2oz

    Griffin EZ Brake: 2.0oz
    New weight (with Plan A): 15.2oz
    Total: 17.2oz. (1 ounce lighter overall)



    Plan A installed






    The work is exceptionally done.

  2. #2
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    That looks fantastic. How long did it take them to do this? I don't know how the original mount attached to the rest of the suppressor but it looks like great work. (I am wondering if they had to cut the mount off the can or whatever)

    It looks like it could be a whole lot more complicated than what most people would expect.

  3. #3
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    They had to cut the old latch off, weld on some new 17-4 with female 1.375” Omega pattern threads (I could remove the plan A and use mounts from YHM, Dead Air, Q, SiCo etc) and then refinish it and install the Plan A (exterior has male Omega pattern threads and interior is designed for Griffin taper mounts

  4. #4
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    Old latch cut off:

    Name:  33D528B2-CFD1-4C99-A38A-2A80DE336319.jpeg
Views: 469
Size:  2.56 MB

    New meat welded in before refinishing:

    Name:  FBE0CAFE-38DD-46EB-BA10-E8EAFF88AB83.jpeg
Views: 465
Size:  304.3 KB


    They received my can on June 20 and finished it last Thursday...received it today. So about 3 weeks with transit. Nick, the guru at Ecco, is working like 16-18 hour days to keep up with the demand

  5. #5
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    Dude. That takes a lot of skill and it looks awesome. Just getting the two ends to line up with each other would be frustrating without having the perfect tools for the job.

    He definitely did a good job on the weld and refinish as well.

  6. #6
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    Quote Originally Posted by alamo5000 View Post
    Dude. That takes a lot of skill and it looks awesome. Just getting the two ends to line up with each other would be frustrating without having the perfect tools for the job.

    He definitely did a good job on the weld and refinish as well.
    Ecco has an amazing setup, that’s for sure. And the coolest part (I think) is that as clean and as tidy as that weld is, it’s done BY HAND. He has the metal on a rotary machine where he controls the speed, but the torch is in his hand. I’d put that up against a robotic weld in terms of clean lines and proper penetration etc

  7. #7
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    Honestly I've been fascinated with things like this for ages. Learning how to weld and use a lathe or CNC machine is very interesting to me. Of course I've never done any of it but I like it a lot.

    Hand welding like that is just amazing.

  8. #8
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    Dude... this is awesome work.

    If/When my 51T latches wear out, I'm definitely doing this.

  9. #9
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    Three AAC cans and a Griffin converted to KeyMo
    Name:  66688AE9-C0D5-489D-8E32-0DCBC77B90C8.jpeg
Views: 555
Size:  276.9 KB


    There’s not a lot he can’t do. I’ve only seen a couple things turned down and it was due to tolerances or construction of whatever particular item not “allowing” for this type of work without being ruined

  10. #10
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    Bro... those KeyMo AAC Cans. Amazing. Makes me glad I've been investing in more KeyMo muzzle devices over the 51T. The Dead Air is also more reasonable in their costs too.

  11. #11
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    I am not 100% familiar with Keymo. I mean I have seen it online but have never played with it in person. It kind of looks like a taper mount variant right?

    You screw this part into the base of the suppressor then put it over the muzzle device. Obviously it doesn't ratchet like the 51T but you just snug it up with that collar, correct?

    https://deadairsilencers.com/product/key-mo/

    Does that mounting system have any play in it at all or is it solid solid once you put it on? The Griffin mounts (the only ones I've ever personally tried) are pretty straight forward with no moving parts. I am wondering in comparison to that baseline how prone are the Keymo's to have play in the system or whatever?

    I don't think they would ever completely back off (not that it's a big problem with 99.99% of suppressors) but I am kind of curious now.

    Also what role do those little shim/washers play?

  12. #12
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    Well this kind of answers my questions... google. It's a thing.

    So if you have experience with both regular (to me) taper mounts vs Keymo what are the pros and cons to each?


  13. #13
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    Quote Originally Posted by Former11B View Post
    Three AAC cans and a Griffin converted to KeyMo
    Name:  66688AE9-C0D5-489D-8E32-0DCBC77B90C8.jpeg
Views: 555
Size:  276.9 KB
    That one Griffin one was previously the gate lock type from Griffin. I am not at all a fan of that type of mount (gate lock) so to me you definitely gave that can an upgrade based on what I see online about these two.

  14. #14
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    Ya I watch that thread on the other site.His work speaks for itself.

    Looking good

  15. #15
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    Taper style have better and more repeatable poi shift, but the keymo is one of the most secure ways of attaching a suppressor, but adds weight and oal.

    Quote Originally Posted by alamo5000 View Post
    Well this kind of answers my questions... google. It's a thing.

    So if you have experience with both regular (to me) taper mounts vs Keymo what are the pros and cons to each?

    Last edited by VIPER 237; 15 July 2020 at 08:16.
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