Suppressor build success

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AndyC
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Suppressor build success

#1

Post by AndyC » Sun Nov 01, 2015 9:16 pm

I'm not sure where else to put this, so here might have to suffice.

I went to a friend's today so he could help me assemble my suppressor - I needed his power-tools and he needed to learn what goes into building one for when it's his turn.

Drilling the end-cap for the exit-hole:
Image

Drilling out the freeze-plug baffles to the final size (pilot holes drilled first for centering):
Image

Filling the tube with baffles:
Image

Cutting stainless tubing for the blast-chamber:
Image

Suppressed AR (full-power 55gr ammo):


Suppressed FAL (full-power 175gr ammo):
Last edited by AndyC on Sun Nov 01, 2015 9:23 pm, edited 1 time in total.
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Re: Suppressor build success

#2

Post by MONGOOSE » Sun Nov 01, 2015 9:22 pm

Have you ever tried the oil filter suppressor?

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AndyC
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Re: Suppressor build success

#3

Post by AndyC » Sun Nov 01, 2015 9:37 pm

No.
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Re: Suppressor build success

#4

Post by MONGOOSE » Sun Nov 01, 2015 9:39 pm

Saw it on u tube....just wondering. Thanks

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Re: Suppressor build success

#5

Post by C-dub » Sun Nov 01, 2015 10:25 pm

Looks and sounds good Andy. BTW, you still need a tax stamp even if you make it yourself, right?
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Re: Suppressor build success

#6

Post by jb2012 » Sun Nov 01, 2015 10:29 pm

Nice! I've thought about making one of these myself, it's on the to do lost for sure.

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Re: Suppressor build success

#7

Post by The Annoyed Man » Sun Nov 01, 2015 10:47 pm

C-dub wrote:Looks and sounds good Andy. BTW, you still need a tax stamp even if you make it yourself, right?
Yes you do. You buy the parts and e-file a Form 1. Takes about 3-4 months, and costs the same $200 for the stamp as a factory-built unit.
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Re: Suppressor build success

#8

Post by AndyC » Mon Nov 02, 2015 8:29 am

^ What TAM said - and thanks, C-Dub ;)

Other than the muzzle devices for the rifles ($100 ea) and the freeze-plug forming tool ($100), the parts for the suppressor cost:

1. 7.6" titanium tube - $75
2. Engraving for titanium tube (trust details, caliber, serial-number) - $25
3. End-cap (at the muzzle) - $20
4. Thread-protector (this is the adapter at the rear which screws the suppressor on to the muzzle) - $30
5. Challenge coin (to keep the suppressor tight - not necessary but nice to have) - $35
6. Freeze plugs (about 50c ea) - $6.50
7. Stainless tubing to form blast-chamber - $10

So, just around $200
Last edited by AndyC on Mon Nov 02, 2015 8:14 pm, edited 2 times in total.
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Re: Suppressor build success

#9

Post by SigM4 » Mon Nov 02, 2015 5:35 pm

What inspired you to build your own versus a commercial offering?
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Re: Suppressor build success

#10

Post by AndyC » Mon Nov 02, 2015 6:12 pm

A few factors helped in deciding:

1. Cost of the suppressor - $200 vs. $900 or so is quite a jump.
2. Convenience of filing a Form 1 (used for home builds) which can be e-filed online instead of mailing paper to the ATF as is required for a commercial-made suppressor on a Form 4.
3. Alleged speedier approval than Form 4 - but TAM and I filed roughly at the same time and he got his Form 4 approval at pretty much the same time as I got my Form 1.
4. I wanted to see how good a self-built one would turn out if I used decent components, so... pride ;)
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Amateurs skip safety-checks - pros don't.
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Re: Suppressor build success

#11

Post by eureka40 » Mon Nov 02, 2015 7:01 pm

Andy, this is the most awesome thing I've seen in a while. Fantastic job and thanks for posting this up for us.

:cheers2:
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Re: Suppressor build success

#12

Post by AndyC » Mon Nov 02, 2015 8:10 pm

Oh - that's very kind of you, thank you :mrgreen: :tiphat:
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Re: Suppressor build success

#13

Post by AndyC » Mon Nov 02, 2015 8:37 pm

Here's a parts-list of my stuff if anyone wants a place to start:

1. 7.6" D-cell titanium tube

2. D-cell stainless spacer pipe

3. D-cell anodized aluminum end-cap

4. D-cell adapter for Griffin Armament flash-hiders/brakes

5. D-cell challenge coin

6. J&S Tactical D-cell plug-forming tool - (6-ton press / big vise needed to use this)

7. Sealed Power 381-3179 freeze-plugs (Napa sku = SEP 3813179) - (about 13-15 needed for a 7.6" tube, so buy at least double that)

8. Griffin Armament taper-mount flash-suppressor

Links worked when I wrote this, but SD Tactical don't offer some of those any more so try https://www.crosshaircustoms.com/produc ... rap-parts/
Last edited by AndyC on Wed Feb 07, 2018 1:21 pm, edited 1 time in total.
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Amateurs skip safety-checks - pros don't.
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Re: Suppressor build success

#14

Post by cheezit » Mon Nov 02, 2015 9:09 pm

Very cool andy.
Do you have a link to the instructions?

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Re: Suppressor build success

#15

Post by AndyC » Mon Nov 02, 2015 9:26 pm

I don't think there's any one specific set of step-by-step instructions but.... I would start here and start getting a sense of things.

Here you can follow a guy step-by-step through the process as he does his build - very clear pics

Here's a pic to illustrate the accepted nomenclature for the various parts:

Image
Remember Kitty Genovese

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Preferred Travel Agent - 72 Virgins Dating Club, Iraq
There's nothing quite like the offer of 230 grains to a man's chest to remind him of his manners

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