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Posted: 12/19/2016 3:42:21 PM EST
[Last Edit: 12/19/2016 3:43:39 PM EST by BlueJames]
How hard would it be for a talented welder and machinist to reweld a cut reciever, using the correct jig, so that the gun functions properly and safely? Is this something only someone with experience building firearms should attempt?

ETA: this would be a semi-auto build firing from a closed bolt
Link Posted: 12/19/2016 3:43:55 PM EST
IBTL
Link Posted: 12/19/2016 3:45:05 PM EST
Follow your heart OP, just be careful who you tell.
Link Posted: 12/19/2016 3:47:11 PM EST
IBTL
Link Posted: 12/19/2016 3:48:02 PM EST
[Last Edit: 12/19/2016 3:48:41 PM EST by hardcorps1775]
We've had a couple threads about that, incl pics. It's not hard if you know what you're doing and the results looked great.

Try that weaponeer DIY site if you want to avoid the cunts accusing you of being a BATFE agent or screaming at you for trying to get them in trouble. Or "IBTL"...
Link Posted: 12/19/2016 3:50:24 PM EST
[Last Edit: 12/19/2016 3:51:53 PM EST by Tuco22]
IIRC if its cut to spec its no longer a firearm so you would technically be manufacturing a new firearm if you fill the autosear hole, if you don't you're re-manufacturing a mg and will get loved tenderly. (im just some guy on the internet btw, and extremely ignorant in the topic of rewats, don't take any of that as gospel)
Link Posted: 12/19/2016 4:12:06 PM EST
Originally Posted By BlueJames:
How hard would it be for a talented welder and machinist to reweld a cut reciever, using the correct jig, so that the gun functions properly and safely? Is this something only someone with experience building firearms should attempt?

ETA: this would be a semi-auto build firing from a closed bolt
View Quote

How hard? Demil specifications require 1/4" kerf cuts in most instances, meaning you've not only got to get everything lined up correctly, and remove any features which would make it a machinegun receiver when finished, but you've got to trim the stubs and weld in machined repair sections, then do final finish machining to dress the welded areas.

It's been done, many times, but it's not trivial. Also in the case of a load-bearing receiver, like the M14, the welded areas aren't as strong as the forged original was. Less of a problem when rewelding a non load-bearing receiver like an M16.
Link Posted: 12/19/2016 4:16:35 PM EST
Hug your dog.
Link Posted: 12/19/2016 4:18:06 PM EST
For whatever you have, there should be ATF-approved methods for semi-only builds. There's tons out there.
Link Posted: 12/19/2016 4:30:30 PM EST
Depends on what you're rewelding. That being said a lot of stuff already has flats, 80%, or 100% semi auto receivers available so its worth a look
Link Posted: 12/19/2016 4:34:12 PM EST
This is the kit in question, Bren Mk II listed as "early cuts, rebuildable."









Link Posted: 12/19/2016 4:36:20 PM EST
Lots of ATF approvals for rewelded MGs, AK receivers, Bren guns, and more.
MG features must be removed or Semi auto features added to the pieces before rewelding.
Need to make sure you start with properly demilled pieces to being with.
Link Posted: 12/19/2016 4:40:45 PM EST
[Last Edit: 12/19/2016 4:47:31 PM EST by ptoguy2002]
Demil standards have changed over time.
The early bren imports weren't cut through the barrel locking area, making them much easier to reweld. Somebody changed that, so later imports were cut right where the barrel locks.
Back in the day they let MP44's cut in half in, and ~10 years ago they'd cut the MP5/40's in half to keep the whole front half intact.
I'd be paranoid today about buying something simply cut in half. Doesn't pass the "demilled" muster anymore
Link Posted: 12/19/2016 4:43:19 PM EST
go to the weaponeer forum

it ain't rocket science
Link Posted: 12/19/2016 4:46:20 PM EST
Discussion ForumsJump to Quoted PostQuote History


That looks to be one of the better demills from IMA.
It can be done without a jig.
Your problem is you have to do it yourself. It cannot be hired out unless the have a manufacturer FFL
Link Posted: 12/19/2016 4:49:29 PM EST
If the kit in question is a Bren, there is an ATF approval for a semi auto reweld.
There was a company that sold the kit for it, forgot who, came with instructions and a jig.
It's complicated though, not your beginner level kind of thing.
Link Posted: 12/19/2016 4:56:40 PM EST
[Last Edit: 12/19/2016 4:58:34 PM EST by stimpsonjcat]
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By BlueJames:
This is the kit in question, Bren Mk II listed as "early cuts, rebuildable."
View Quote


A Bren gun you say?









The initial cleanup and cleanup between passes is the hard part.

I did mine a little differently with the blocking bar because I couldn't bear to destroy those cool markings.

Link Posted: 12/19/2016 4:57:44 PM EST
Almost anything is possible when it comes to metal work. You can always add and remove metal. The problem is having the skills and equipment. A $200 harbor freight wire feed or stick welder ain't gonna do the job.
Link Posted: 12/19/2016 5:01:51 PM EST
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By GNRNR:


That looks to be one of the better demills from IMA.
It can be done without a jig.
Your problem is you have to do it yourself. It cannot be hired out unless the have a manufacturer FFL
View Quote



This kind of fucks things up for me, I have 0 welding skills
Link Posted: 12/19/2016 5:06:55 PM EST
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By BlueJames:



This kind of fucks things up for me, I have 0 welding skills
View Quote


In that case, what do you want for the kit?
Link Posted: 12/19/2016 5:19:45 PM EST
[Last Edit: 12/19/2016 5:31:03 PM EST by propguy]
Yeaaaaaaaaaa
Nope Nope Nope

Surely your not serious

Huh maybe not as illegal as I thought
TiG Welding is your friend.... legally of course
Link Posted: 12/19/2016 5:27:00 PM EST
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By BlueJames: This kind of fucks things up for me, I have 0 welding skills
View Quote


Does Taiwan have community colleges?
Link Posted: 12/19/2016 5:30:45 PM EST
With the right filler rod and appropriate skill level anything is possible.

Bren receiver Jigs are out there as well as places that will reweld certain demil type Bren receivers for fee.
Link Posted: 12/19/2016 5:54:24 PM EST
Link Posted: 12/19/2016 6:12:17 PM EST
Just wait until Trump instructs Sessions to re-open the registry for an amnesty period.
Link Posted: 12/20/2016 12:54:22 AM EST
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By BlueJames:



This kind of fucks things up for me, I have 0 welding skills
View Quote


Anyone can MiG. Practice.

Also at one time Project Guns built Brens on customer supplied kits.
Link Posted: 12/20/2016 1:00:43 AM EST
convert all parts to Semi build spec before starting on Receiver.

Link Posted: 12/20/2016 8:29:55 AM EST
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Idpapaperoperator:
IBTL
View Quote

To do it legally you need to modify the cut pieces for semiauto operation BEFORE welding it into a functional receiver. If you modify first you modify scrap metal. If you weld first you re make a machine gun, and once a machine gun always a machine gun.
Link Posted: 12/20/2016 8:46:24 AM EST
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By shack357:

To do it legally you need to modify the cut pieces for semiauto operation BEFORE welding it into a functional receiver. If you modify first you modify scrap metal. If you weld first you re make a machine gun, and once a machine gun always a machine gun.
View Quote View All Quotes
View All Quotes
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By shack357:
Originally Posted By Idpapaperoperator:
IBTL

To do it legally you need to modify the cut pieces for semiauto operation BEFORE welding it into a functional receiver. If you modify first you modify scrap metal. If you weld first you re make a machine gun, and once a machine gun always a machine gun.

Yep ...once it is a machine gun there is no going back.
Link Posted: 12/20/2016 9:04:52 AM EST
[Last Edit: 12/20/2016 9:09:32 AM EST by HistoricArmsLLC]
OP,

Yes, you can, yes it is very legal, and there are several methods to make a semi BREN out of destroyed receiver fragments....Each method has pros and cons, some easier, some harder.

Do your homework before you ever pick up a tool.

This receiver was far more roached than the one you have posted:

Attachment Attached File

Attachment Attached File

Attachment Attached File

Attachment Attached File

Attachment Attached File
Link Posted: 12/20/2016 2:56:17 PM EST
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By HistoricArmsLLC:
OP,

Yes, you can, yes it is very legal, and there are several methods to make a semi BREN out of destroyed receiver fragments....Each method has pros and cons, some easier, some harder.

Do your homework before you ever pick up a tool.

This receiver was far more roached than the one you have posted:

https://www.AR15.Com/media/mediaFiles/169738/DSC04824-111221.JPG
https://www.AR15.Com/media/mediaFiles/169738/DSC04912-111233.JPG
https://www.AR15.Com/media/mediaFiles/169738/DSC04976-111222.JPG
https://www.AR15.Com/media/mediaFiles/169738/DSC04980-111223.JPG
https://www.AR15.Com/media/mediaFiles/169738/DSC04982-111224.JPG
View Quote



I'm jelly, L4 is a rare bird.
Link Posted: 12/20/2016 3:48:40 PM EST
I have build a bunch of MG from kits, and like 5 brens.

At the very least you need to be able to weld, have a grinder, die grinder, and dremel.
Link Posted: 12/20/2016 3:50:18 PM EST
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By Fat_McNasty:
convert all parts to Semi build spec before starting on Receiver.

http://i1370.photobucket.com/albums/ag263/Bsr_Bullets/IMG_1140_zps4ba8e382.jpg
View Quote

I love this build always have always will
Link Posted: 12/20/2016 4:09:31 PM EST
[Last Edit: 12/20/2016 4:11:04 PM EST by Spent_Casing]
I used to do it with M64 Yugo AK kits. Its not easy but its not hard. Im a fabricator for a living so that helped a lot. But with no welding/fitting experience its a pretty tall task. Not impossible but its a gun and Id be skeptical 
of shooting one built by a complete novice


Heres an old pic of an M64 I did a long time ago. And yes the 3rd pin (autosear) hole was welded up before I welded the 3 receiver stubs together.



Link Posted: 12/20/2016 4:10:55 PM EST
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By deanwormer:
Hug your dog.
View Quote


hahaha
Link Posted: 12/20/2016 4:22:12 PM EST
It's a trap! Eject!
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