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[ARCHIVED THREAD] - Form 1 12gauge suppressor

Posted: 5/1/2017 2:35:17 PM EDT

Wanted to share my form 1 shotgun suppressor shooting so bird shot.
2"od x 10" long

https://youtu.be/jjPmWPzXSvI

Posted: 5/1/2017 4:50:08 PM EDT

[#1]

Nice work, embeded it for you

Suppressed 12ga shotgun form 1

https://www.youtube.com/watch?v=jjPmWPzXSvI

Posted: 5/1/2017 5:06:40 PM EDT

[#2]

Got any build details? I'm interested to know how you did it.

Posted: 5/1/2017 6:56:03 PM EDT

[#3]

Quote History

Quoted:
Got any build details? I'm interested to know how you did it.

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I basically made simple M style baffles that have a tapered bore so each baffle acts like a choke forcing the wad closed

Posted: 5/1/2017 7:22:30 PM EDT

[#4]

Quote History

Quoted:

I basically made simple M style baffles that have a tapered bore so each baffle acts like a choke forcing the wad closed

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So basically the reverse of how you'd normally install them?

Posted: 5/1/2017 11:17:29 PM EDT

[#5]

Same orientation as a regular M baffle just a slight taper in the leading edge of the bore.

I'll snap some pictures when I take it apart to clean it.

Posted: 5/10/2017 2:05:59 AM EDT

[#6]

Quote History

Quoted:
Same orientation as a regular M baffle just a slight taper in the leading edge of the bore.

I'll snap some pictures when I take it apart to clean it.

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Please do. I would love to see how this is set up.

Posted: 5/10/2017 2:56:13 AM EDT

[#7]

In for pics.

Posted: 1/11/2018 7:00:07 AM EDT

[#8]

Quote History

Quoted:
Same orientation as a regular M baffle just a slight taper in the leading edge of the bore.

I'll snap some pictures when I take it apart to clean it.

View Quote

What were the dimensions?

Posted: 1/13/2018 6:32:27 PM EDT

[#9]

in to see picts.

Posted: 1/13/2018 6:36:26 PM EDT

[#10]

I have an extra stamp, I wanted to do a 12 gauge suppressor so I'm in for the info.

Posted: 1/15/2018 9:00:15 AM EDT

[#11]

I believe this is the build he's talking about.
And this is a video of it firing.

Posted: 1/16/2018 3:21:09 PM EDT

[#12]

Quote History

Quoted:
in to see picts.

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Posted: 1/23/2018 9:55:55 AM EDT

[#13]

I’m also in for the pics. Wish there were more offerings in shotgun suppressors.

Posted: 1/23/2018 1:17:50 PM EDT

[#14]

Attached File

I wondered where you had been since the car wreck.

I’m interested on the internals as well. After watching that movie I’ve wanted one. Form one and one stamp with the body permanently attached to the barrel.

Posted: 1/23/2018 3:21:06 PM EDT

[#15]

Quote History

Quoted:
https://www.AR15.Com/media/mediaFiles/56603/121558BA-6129-4A28-92FE-36739E7B3070-429049.JPG

I wondered where you had been since the car wreck.

I’m interested on the internals as well. After watching that movie I’ve wanted one. Form one and one stamp with the body permanently attached to the barrel.

View Quote

I have a design for one.
You need 2 Napa 4003 tubes from gun thread adapters, 3 m22x.75 caps(or 4), another cap with the internal ID of your barrel(can just use a fourth m22 cap for this but I’m using an aluminum one that I have to save money), 45mm freeze plugs, a Napa 4003 metal fuel filter element, stainless shoe eyelets, and a tube threaded for m22x.75 on the inside, then for 3 inches on the outside on both sides and perforated.

You thread this perforated tube over the barrel, then you get a 12 inch stainless tube with the end caps(one being m22) and thread that over the this perforated tube/extension. The barrel has to have holes drilled in it and the filter slips over the barrel as do the freeze plugs. Then you get the second tube with the two m22 end caps and that over the sticking out perforated tube. This second tube is made from aluminum and will be full of the shoe eyelets.

Only issue I see is gas blowing out from the first end cap on the first tube.
Also this is specifically for a vepr 12 with a 22.4 inch barrel.

Posted: 1/24/2018 9:00:44 AM EDT

[#16]

Quote History

Quoted:

I have a design for one.
You need 2 Napa 4003 tubes from gun thread adapters, 3 m22x.75 caps(or 4), another cap with the internal ID of your barrel(can just use a fourth m22 cap for this but I’m using an aluminum one that I have to save money), 45mm freeze plugs, a Napa 4003 metal fuel filter element, stainless shoe eyelets, and a tube threaded for m22x.75 on the inside, then for 3 inches on the outside on both sides and perforated.

You thread this perforated tube over the barrel, then you get a 12 inch stainless tube with the end caps(one being m22) and thread that over the this perforated tube/extension. The barrel has to have holes drilled in it and the filter slips over the barrel as do the freeze plugs. Then you get the second tube with the two m22 end caps and that over the sticking out perforated tube. This second tube is made from aluminum and will be full of the shoe eyelets.

Only issue I see is gas blowing out from the first end cap on the first tube.
Also this is specifically for a vepr 12 with a 22.4 inch barrel.

View Quote

Why so complex?
BJGunner has shown a design almost identical as one for centerfire pistol/rifle.
You can buy 4003 bodies in 5,7,8,9,10 & 12in lengths so there's no need to thread 2 together.
Buy the 12" version, along w/ your "storage cups", and a tapered reamer.
Drill your holes, in the "cups", follow w/ the reamer (to help keep wad closed) and stack inside tube.
The only thing that might be custom is your choke w/ adapter threads and/or rear adapter cap. However, these can easily be made by any of the various machine shops in one's locale.

Also, drilling some holes in your barrel isn't going to do much at all. Shotguns need a lot of porting if you're not dumping a majority of gas immediately after the chamber.

Posted: 1/25/2018 5:06:56 AM EDT

[#17]

Because this way I’d only be adding 5 inches to the already 22.4 inch barrel vepr 12.
Also how would drilling the barrel not do anything?

Posted: 1/25/2018 5:17:51 AM EDT

[#18]

Quote History

Quoted:

Why so complex?
BJGunner has shown a design almost identical as one for centerfire pistol/rifle.
You can buy 4003 bodies in 5,7,8,9,10 & 12in lengths so there's no need to thread 2 together.
Buy the 12" version, along w/ your "storage cups", and a tapered reamer.
Drill your holes, in the "cups", follow w/ the reamer (to help keep wad closed) and stack inside tube.
The only thing that might be custom is your choke w/ adapter threads and/or rear adapter cap. However, these can easily be made by any of the various machine shops in one's locale.

Also, drilling some holes in your barrel isn't going to do much at all. Shotguns need a lot of porting if you're not dumping a majority of gas immediately after the chamber.

View Quote

Posted: 1/25/2018 9:20:14 AM EDT

[#19]

There are several good examples of integral and non-integral suppression designs for shotguns. The ones employing barrel porting look like swiss cheese and not just for the last 12" or so, but the entire length. Do you not think that if putting a couple holes, for the last bit of barrel, would have worked that that's what they would have done? Also, a fair share of these are only 410 and 20gauge, not the larger 12 you're dealing with.

I'm not 100% sure, but there's about what, 12.5" of barrel in front of front sight?

If your intent is to cut holes in the barrel, why don't you just lop off 4" (legal >18") and put more suppressor off the muzzle? This is where your real gains will be.

I just think you're making for a very complex and involved design when an easier and more effective answer is available. Your gun, your stamp, your wishes. Carry on.

Posted: 1/25/2018 10:39:54 PM EDT

[#20]

Quote History

Quoted:
There are several good examples of integral and non-integral suppression designs for shotguns. The ones employing barrel porting look like swiss cheese and not just for the last 12" or so, but the entire length. Do you not think that if putting a couple holes, for the last bit of barrel, would have worked that that's what they would have done? Also, a fair share of these are only 410 and 20gauge, not the larger 12 you're dealing with.

I'm not 100% sure, but there's about what, 12.5" of barrel in front of front sight?

If your intent is to cut holes in the barrel, why don't you just lop off 4" (legal >18") and put more suppressor off the muzzle? This is where your real gains will be.

I just think you're making for a very complex and involved design when an easier and more effective answer is available. Your gun, your stamp, your wishes. Carry on.

View Quote

Because then I’d have to pay to rethread the barrel. I could sell this vepr and get a “firearm” Saiga 12 made by that company that makes momocores for form1suppressor in their recore service but I don’t think it would be the same quality as my vepr.
Also I’d do it like you’re describing for the porting.

https://www.802traders.com/product-p/sa-zver.htm
This is the gun