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Posted: 8/21/2019 4:46:36 PM EDT
[Last Edit: 9/19/2019 6:39:11 PM EDT by Gr8Santini]
Adding Nick’s contact info to the op.
ECCO Facebook Link



I recently sent two AAC SDN6 cans to ECCO Machine to have Dead Air Keymo mounts installed.  He sent me these pics today.  I realize that 51T is fine for many people, but This is worth it to me.  He also cut and threaded a barrel for me.  Can’t wait to get them!



Link Posted: 8/21/2019 4:57:59 PM EDT

Link Posted: 8/21/2019 5:00:07 PM EDT
Link Posted: 8/21/2019 5:08:46 PM EDT
I want to ship my SDN6 to ECCO, just can't decide what mounts I want to go with.  I have the Q Plan B and Direct Thread on my Saker, not sure if I want to commit to Q or be stuck with direct thread on the 6.
Link Posted: 8/21/2019 5:17:30 PM EDT
Link Posted: 8/21/2019 5:20:13 PM EDT
[Last Edit: 8/21/2019 5:23:27 PM EDT by bradpierson26]


I kinda want my Trek to get a Plan A mod and my Specwar 556 to Keymo
Link Posted: 8/21/2019 6:10:49 PM EDT
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By eric10mm:
Dang them are purdy!

Are those robotic welds?
View Quote
I know.  I can’t stop looking at them.
Link Posted: 8/21/2019 6:17:48 PM EDT
[Last Edit: 8/22/2019 5:10:17 PM EDT by Pneumagger]
How does that not change the stated length on the Approved Form 4?
Link Posted: 8/21/2019 6:26:11 PM EDT
Very nice.  He did a Plan B conversion for a friend of mine.  Turned out really well.
Link Posted: 8/21/2019 6:33:28 PM EDT
The adapter mount is removable
Link Posted: 8/21/2019 6:58:45 PM EDT
Wonder that AAC would say if you wanted waranty work...
Link Posted: 8/21/2019 7:38:27 PM EDT
[Last Edit: 8/21/2019 7:38:56 PM EDT by bradpierson26]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By BIGSHOOTER414:
Wonder that AAC would say if you wanted waranty work...
View Quote
Personally, I’d be fine if they said kick rocks
If I engine swapped my Nissan Altima, I’d expect Nissan to say the same
Link Posted: 8/21/2019 7:51:46 PM EDT
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By eric10mm:
Are those robotic welds?
View Quote
They're not.  I use a 5C rotary indexer with a 3 jaw chuck that I mounted a 25 RPM DC gearmotor to, which is powered by a PWM speed control, and I use a momentary switch in my support hand to control it.  So the work is rotated by electric motor, but I still hold the torch.
Link Posted: 8/21/2019 8:17:34 PM EDT
wow those welds are beautiful

my m4-2000 should be arriving at ECCO machine tomorrow. im going with the Griffin Plan-A conversion.
Link Posted: 8/21/2019 8:42:24 PM EDT
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By BrWn001COW:
wow those welds are beautiful

my m4-2000 should be arriving at ECCO machine tomorrow. im going with the Griffin Plan-A conversion.
View Quote
Post pics when you can!
Link Posted: 8/21/2019 9:40:41 PM EDT
Is there a price increase or reduction for not having the mounts removable? If I just wanted it welded in...?
Link Posted: 8/21/2019 11:21:17 PM EDT
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Sixtysixdeuce:

They're not.  I use a 5C rotary indexer with a 3 jaw chuck that I mounted a 25 RPM DC gearmotor to, which is powered by a PWM speed control, and I use a momentary switch in my support hand to control it.  So the work is rotated by electric motor, but I still hold the torch.
View Quote
That's all Greek to me, but all I have to say is beautiful work!
Link Posted: 8/21/2019 11:28:02 PM EDT
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By bradpierson26:
Is there a price increase or reduction for not having the mounts removable? If I just wanted it welded in...?
View Quote
On the AAC cans, no, it's the same process, just one more time around with the TIG torch.  Still have to make the adapter; without it, we lose the rear core-to-tube connection.  It threads into the core and then gets welded to the tube:

Link Posted: 8/21/2019 11:29:06 PM EDT
Can this be done on an SPR-M4 as well?
Link Posted: 8/21/2019 11:31:51 PM EDT
That's awesome work man.  Looks great and the best part is an old worn out can now providing an extended service life to a happy customer.
Link Posted: 8/21/2019 11:43:59 PM EDT
How much is the conversion and what was the turnaround time?
Link Posted: 8/22/2019 7:56:16 AM EDT
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By jeffhsu95:
How much is the conversion and what was the turnaround time?
View Quote
Cost for the work was roughly the cost of two AAC flash hiders.  Turnaround time was one week.
Link Posted: 8/22/2019 10:11:31 AM EDT
How did you ship the cans to him?  I would like to ship USPS but I'm not sure if I can or if there are any special requirements.
Link Posted: 8/22/2019 10:16:55 AM EDT
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By The_Five_Elements:
How did you ship the cans to him?  I would like to ship USPS but I'm not sure if I can or if there are any special requirements.
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I used UPS
Link Posted: 8/22/2019 10:22:37 AM EDT
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Gr8Santini:

I used UPS
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Thanks.
Link Posted: 8/22/2019 10:31:51 AM EDT
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By bradpierson26:


I kinda want my Trek to get a Plan A mod and my Specwar 556 to Keymo
View Quote
Yup. I have the same cans, except mine is Trek T.

I want the ass end chopped off and then threaded to accept any omega/hybrid pattern adapters.
Link Posted: 8/22/2019 1:42:56 PM EDT
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By chewbacca:
Yup. I have the same cans, except mine is Trek T.

I want the ass end chopped off and then threaded to accept any omega/hybrid pattern adapters.
View Quote View All Quotes
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Discussion ForumsJump to Quoted PostQuote History
Originally Posted By chewbacca:
Originally Posted By bradpierson26:


I kinda want my Trek to get a Plan A mod and my Specwar 556 to Keymo
Yup. I have the same cans, except mine is Trek T.

I want the ass end chopped off and then threaded to accept any omega/hybrid pattern adapters.
This except for my Turbo. Whats the contact for ECCo machine?
Link Posted: 8/22/2019 4:02:06 PM EDT
That is some nice looking work.  I do love upgraded suppressors.
Link Posted: 8/22/2019 4:03:10 PM EDT
I have a 51t M4-2000 in 6.8 and an 18t 762-SD that need this if it is possible.

I’m OCONUS right now, but I can ship them out as soon as I get home.
Link Posted: 8/22/2019 5:22:46 PM EDT
[Last Edit: 8/22/2019 5:28:54 PM EDT by Pneumagger]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Pneumagger:
How does that not change the stated length on the Approved Form 4?
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Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Pneumagger:
How does that not change the stated length on the Approved Form 4?
No answer? Here’s what I get when googling the subject.

Small Arms Review Q&A with the ATF about silencers. Seems like a pretty clear and concise answer straight from the mouth of the ATF. I’m not sure if the keymo adapters are longer or not. If I were switching to a mount that resulted in a net increase in length, I’d want a letter in hand from the ATF giving me the approval. See question 5:

Q5: May a repair change the dimensions or caliber of a silencer?

A: If alterations to a silencer would increase the overall length or change the diameter or caliber of a silencer, this is the making of a new silencer, as opposed to a repair. The new silencer must be registered and transferred in accordance with the NFA and the GCA. Alterations to a registered silencer that result in a minimal reduction in the overall length for purposes of rethreading are permissible as repairs. However, the reduction in length may not result in the removal, obliteration, or alteration of the existing serial number, as this would violate 18 U.S.C. § 922(k). If such a repair is necessary, the damaged silencer should be destroyed or returned to the registrant. If it is destroyed, destruction should be reported to the NFA Branch. Any replacement silencer must be registered and transferred in accordance with the NFA and the GCA. See Q2 and Q3 for further information on repairs
Link Posted: 8/22/2019 5:30:19 PM EDT
[Last Edit: 8/28/2019 12:52:06 AM EDT by GripnAK47s]
Beautiful work, really awesome.

Someone send a specwar to direct thread!

Really cool!
Link Posted: 8/22/2019 5:30:56 PM EDT
Link Posted: 8/22/2019 5:36:47 PM EDT
[Last Edit: 8/22/2019 5:40:30 PM EDT by eric10mm]
Link Posted: 8/22/2019 5:38:11 PM EDT
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Pneumagger:

No answer? Here's what I get when googling the subject.

Small Arms Review Q&A with the ATF about silencers. Seems like a pretty clear and concise answer straight from the mouth of the ATF. I'm not sure if the keymo adapters are longer or not. If I were switching to a mount that resulted in a net increase in length, I'd want a letter in hand from the ATF giving me the approval. See question 5:
View Quote
Something to remember, the KeyMo isn't part of the suppressor length.  Only the portion welded to the back counts towards overall length. As long as Ecco is cutting the back down a fraction to account for that, I don't think there are any issues.
Link Posted: 8/22/2019 5:51:13 PM EDT
[Last Edit: 8/22/2019 5:51:29 PM EDT by Sixtysixdeuce]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By eric10mm:
What material are you using there?
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Originally Posted By eric10mm:
What material are you using there?
17-4 Stainless.

Originally Posted By jaqufrost:

Something to remember, the KeyMo isn't part of the suppressor length.  Only the portion welded to the back counts towards overall length. As long as Ecco is cutting the back down a fraction to account for that, I don't think there are any issues.
Yep.  They come out almost the exact same length as original measured from the rear of the adapter.  Direct thread conversions come out just a touch shorter than original.

In truth, ATF would get cranky if you lengthened a can significantly, especially if the goal was to increase performance (stupid, since a can is a can is a can), but nobody is gonna get twisted about a couple tenths of an inch one way or the other.  Brand new cans don't even always measure the same length or weight as published.  The two which are the subject of the thread were 20.0 and 20.7 oz before conversion, and 18.9/19.6 after (not counting Keymo mount)
Link Posted: 8/22/2019 7:04:04 PM EDT
Link Posted: 8/22/2019 9:05:42 PM EDT
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By jeremywills:
That's awesome work man.  Looks great and the best part is an old worn out can now providing an extended service life to a happy customer.
View Quote
Exactly!!!
Link Posted: 8/22/2019 9:39:31 PM EDT
OST

I have an old 18t m4-2000 that needs a better mount, just not sure which mount system to go with.
Link Posted: 8/22/2019 10:42:15 PM EDT
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Jeepsnguns81:
I want to ship my SDN6 to ECCO, just can't decide what mounts I want to go with.  I have the Q Plan B and Direct Thread on my Saker, not sure if I want to commit to Q or be stuck with direct thread on the 6.
View Quote
If you got it threaded for Omega mounts like the OP's cans, you could use either, or both, or try other mounting systems (Plan A, YHM, ASR, etc).

Great looking work! Once I get my 77/44 back I plan on sending it and maybe a CZ455 barrel down to ECCO for a chop and thread.
Link Posted: 8/23/2019 8:52:16 PM EDT
[Last Edit: 8/23/2019 8:52:55 PM EDT by EHilderbrand]


Those look great.
Link Posted: 8/24/2019 8:59:43 AM EDT
Link Posted: 8/24/2019 9:22:46 AM EDT
Figure out how to convert all my AAC cans to the surefire socom mounts please.
Link Posted: 8/24/2019 9:37:38 AM EDT
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By brodband8:
Figure out how to convert all my AAC cans to the surefire socom mounts please.
View Quote
Gross! Lol
Where are you going to get Surefire modules? Harvest them off a Warden?
Link Posted: 8/24/2019 10:04:59 AM EDT
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By brodband8:
Figure out how to convert all my AAC cans to the surefire socom mounts please.
View Quote
I can probably figure out a way to do it modifying these:

https://www.midwayusa.com/product/1017845325
Link Posted: 8/24/2019 10:52:22 AM EDT
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By bradpierson26:

Gross! Lol
Where are you going to get Surefire modules? Harvest them off a Warden?
View Quote
Exactly.
Link Posted: 8/24/2019 10:53:31 AM EDT
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Sixtysixdeuce:

I can probably figure out a way to do it modifying these:

https://www.midwayusa.com/product/1017845325
View Quote
Someone surely has the same idea who has a warden they want to send for testing purposes? lol
Link Posted: 8/24/2019 1:45:51 PM EDT
Damn that guy has skills
Link Posted: 8/24/2019 1:57:35 PM EDT
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By texassooner:
Damn that guy has skills
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And the costs are reasonable and he’s fast!
Link Posted: 8/25/2019 12:09:42 AM EDT
M4-2000 with Griffin Plan A adaptor

Link Posted: 8/25/2019 10:28:35 AM EDT
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By BrWn001COW:
M4-2000 with Griffin Plan A adaptor

https://i.imgur.com/umYS6li.jpg
View Quote
This stuff is like magic to me.  Lol
Link Posted: 8/25/2019 11:02:12 AM EDT
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Sixtysixdeuce:

I can probably figure out a way to do it modifying these:

https://www.midwayusa.com/product/1017845325
View Quote
Hi! What’s the best way to contact you with questions? I’m not on Facebook.
Thanks!
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