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Link Posted: 1/20/2011 10:24:41 AM EDT
[#1]
generally the orifice size won't be correct and it won't give you a hot enough flame
Link Posted: 1/20/2011 5:07:06 PM EDT
[#2]
Does any one have any sliver soider paste left the won't to sell
Link Posted: 1/20/2011 5:19:01 PM EDT
[#3]
Interesting. TAG.
Link Posted: 1/24/2011 4:31:14 PM EDT
[#4]
OK people, I have read through all 7 pages and very interesting and a LOT of advice..  Would someone with a good camera PLEASE do a Video and then it can me added to this thread or have its own stickie..

Looked on youtube but not able to find one..  A GOOD video would sure answer a LOT of the questions and SHOW how its done and cleaned up..

Link Posted: 1/24/2011 4:50:47 PM EDT
[#5]
I considered making a video, but it would most likely look like a monkey making sweet love to a football...
Link Posted: 1/24/2011 7:40:25 PM EDT
[#6]
Originally Posted By GySgt_D:
I considered making a video, but it would most likely look like a monkey making sweet love to a football...


I like porn - give it a try... lol

Really, someone do this...
Link Posted: 1/26/2011 11:17:32 AM EDT
[#7]
I just did one the other day...I wish I read how you guys wanted a video.  It would have been pretty boring though since 5 or so minutes would be nothing but me holding a MAPP gas torch to the comp I attached in order to get it hot enough to melt the silver solder paste.  It seems everytime I do one I have to remember that although the comp may be cherry red, the barrel underneath may not be.  My first test to see if it had melted revealed a free spinning comp.  After another 2 minutues the comp was "fixed" on solid when I went back to reheat.  Very easy process...don't over think this guys! Clean your threads(both barrel and comp) very well with brake cleaner, acetone, or whatever you may use before LIGHTLY applying the solder.  You don't need so much that it squirts out the back of the comp when you thread it on since it will be wasted and the stuff is EXPENSIVE!  After threading it on, make sure to smear your heat paste thick and heavy all over the barrel, at least the first 3-4 inches from the comp.  I put it so thick it is literally falling off.  After I get done I only have minimul discoloration of about 1/2" from the comp and most of it kind of "disapears" after a couple hundred rounds in one session due to the barrel reheating.
Link Posted: 1/26/2011 1:19:32 PM EDT
[#8]
In addition, I apply heat stop paste INSIDE the bore.
Link Posted: 1/27/2011 8:42:52 PM EDT
[#9]
I wonder if a large pipe wrench would be considered a common hand tool?
Link Posted: 2/4/2011 3:32:27 AM EDT
[#10]
Originally Posted By Dawg180:
Originally Posted By Easy_E:
There is another way to pin it on without a welder. A local gunsmith showed me this .
Drill a hole through the flash hider and in to the barrel slightly. Pull the hider back off and tap the hole with threads. Reinstall the flash hider with the threaded hole lined up with the hole in the barrel. Take a extra long set screw with loctite and thread it into the hole. It should bottom out in the hole and leave the head above the surface. Now grind off the head and shape to the hider. If your careful you only need to touch up the round shiny spot.


That is not legal.  





This is exactly how ADCO perm attaches a muzzle device.  Except they don't drill into the barrel.  They just tighten the screw down onto the barrel threads and grind it off.
Link Posted: 2/9/2011 3:25:08 AM EDT
[#11]
Originally Posted By 79rallysport:
Originally Posted By Dawg180:
Originally Posted By Easy_E:
There is another way to pin it on without a welder. A local gunsmith showed me this .
Drill a hole through the flash hider and in to the barrel slightly. Pull the hider back off and tap the hole with threads. Reinstall the flash hider with the threaded hole lined up with the hole in the barrel. Take a extra long set screw with loctite and thread it into the hole. It should bottom out in the hole and leave the head above the surface. Now grind off the head and shape to the hider. If your careful you only need to touch up the round shiny spot.


That is not legal.  





This is exactly how ADCO perm attaches a muzzle device.  Except they don't drill into the barrel.  They just tighten the screw down onto the barrel threads and grind it off.


Every pin job I have seen from Adco looks like it has been welded over and then refinished and not just screwed into a drilled and tapped hole.
Link Posted: 2/16/2011 7:20:14 AM EDT
[#12]
Originally Posted By FloridaCreekIndian:
Originally Posted By 79rallysport:
Originally Posted By Dawg180:
Originally Posted By Easy_E:
There is another way to pin it on without a welder. A local gunsmith showed me this .
Drill a hole through the flash hider and in to the barrel slightly. Pull the hider back off and tap the hole with threads. Reinstall the flash hider with the threaded hole lined up with the hole in the barrel. Take a extra long set screw with loctite and thread it into the hole. It should bottom out in the hole and leave the head above the surface. Now grind off the head and shape to the hider. If your careful you only need to touch up the round shiny spot.


That is not legal.  





This is exactly how ADCO perm attaches a muzzle device.  Except they don't drill into the barrel.  They just tighten the screw down onto the barrel threads and grind it off.


Every pin job I have seen from Adco looks like it has been welded over and then refinished and not just screwed into a drilled and tapped hole.


Can you post a pic?

Link Posted: 5/23/2011 8:11:20 PM EDT
[#13]
Is this the torch I want to use for this? Linkage to Lowes.com
Link Posted: 5/23/2011 9:56:47 PM EDT
[#14]
Originally Posted By 79rallysport:
Originally Posted By FloridaCreekIndian:
Originally Posted By 79rallysport:
Originally Posted By Dawg180:
Originally Posted By Easy_E:
There is another way to pin it on without a welder. A local gunsmith showed me this .
Drill a hole through the flash hider and in to the barrel slightly. Pull the hider back off and tap the hole with threads. Reinstall the flash hider with the threaded hole lined up with the hole in the barrel. Take a extra long set screw with loctite and thread it into the hole. It should bottom out in the hole and leave the head above the surface. Now grind off the head and shape to the hider. If your careful you only need to touch up the round shiny spot.


That is not legal.  





This is exactly how ADCO perm attaches a muzzle device.  Except they don't drill into the barrel.  They just tighten the screw down onto the barrel threads and grind it off.


Every pin job I have seen from Adco looks like it has been welded over and then refinished and not just screwed into a drilled and tapped hole.


Can you post a pic?



There is a pic back in this post showing this method . Please post a picture of this I've been taking heat for this for almost three years. ( no pund intended )
Link Posted: 5/24/2011 3:56:57 PM EDT
[#15]




Originally Posted By GutWrench:

Is this the torch I want to use for this? Linkage to Lowes.com




That will work.  I tend to use the Oxy/Mapp rig, but that's only because I'm used to it, many find it a bit of overkill and a PIA to use.  I prefer the kits that have the 4 foot hose, you'll find it's easier to work around the FH with that rig then the entire bottle.
Link Posted: 6/5/2011 8:54:09 PM EDT
[#16]
Anyone know of any deals on 14.5" M4 profile barrels so I can give this a shot?
Link Posted: 6/6/2011 12:28:39 PM EDT
[#17]



Originally Posted By hoggunner:


OK people, I have read through all 7 pages and very interesting and a LOT of advice..  Would someone with a good camera PLEASE do a Video and then it can me added to this thread or have its own stickie..



Looked on youtube but not able to find one..  A GOOD video would sure answer a LOT of the questions and SHOW how its done and cleaned up..





You send me an upper and muzzle device and I'll do it. I have access to a 1080p camcorder.



:)



Can I keep the upper too?



 
Link Posted: 6/13/2011 6:02:47 PM EDT
[#18]
Two things:

Has anyone tried as the heat sink immersing the barrel in a bucket of water as the heat sink with only the flashhider and some change sticking out?

Has some have done suppressor mounts - what about extended firing with a suppressor and remelting the solder?  Suppressors get hot but I have never seen any documented internal temp measurements.  1100 is pretty damn hot............
Link Posted: 6/23/2011 8:47:34 PM EDT
[#19]
Can you use mapp gas to heat up the muzzle break enough to get a good solder? Thanks SD79
Link Posted: 6/24/2011 6:16:22 PM EDT
[#20]



Originally Posted By PraesulPresul1:


Two things:



Has anyone tried as the heat sink immersing the barrel in a bucket of water as the heat sink with only the flashhider and some change sticking out?



Has some have done suppressor mounts - what about extended firing with a suppressor and remelting the solder?  Suppressors get hot but I have never seen any documented internal temp measurements.  1100 is pretty damn hot............
Water is good if you want to change the temper of the metal, otherwise there are much better heat sinks to use.  Seriously, the Heat Stop paste or equivalent products were made just for the purpose of protecting metal against heat.  That's what you should use.



Can't speak about suppressor mounts, but I don't think you're going to get temps that high or you would probably see some deformation in the suppressor itself.  I'm not an expert on this, though, so I'll let more experienced folks comment.





 
Link Posted: 6/24/2011 6:16:57 PM EDT
[Last Edit: WayneG] [#21]





Originally Posted By SheepDog1979:



Can you use mapp gas to heat up the muzzle break enough to get a good solder? Thanks SD79
Yes.  MAPP torch runs at 5300 °F.
 
Link Posted: 6/24/2011 7:11:00 PM EDT
[#22]
Originally Posted By WayneG:

Originally Posted By SheepDog1979:
Can you use mapp gas to heat up the muzzle break enough to get a good solder? Thanks SD79
Yes.  MAPP torch runs at 5300 °F.

 


I have an issue, my crush washer that came with my BC 1.5 doesn't allow it to be timed correctly on the barrel. It touches the crush washer about a quarter turn past my desired timed position. That means that I have to either back it off an had like .010 gap between the washer and barrel/BC, or try and crank it 3/4  turn around the barrel to get it to be properly timed. I got it snug and tried to turn it some more but, decided to put a torque wrench on it while I was doing it and set the wrench to 30 ft/lbs and it barely moved before hitting my torque setting. Any suggestions as to what I could do? I am going to be silver soldering it this weekend.. Thanks SD79
Link Posted: 6/24/2011 7:49:28 PM EDT
[#23]
Originally Posted By SheepDog1979:
Originally Posted By WayneG:

Originally Posted By SheepDog1979:
Can you use mapp gas to heat up the muzzle break enough to get a good solder? Thanks SD79
Yes.  MAPP torch runs at 5300 °F.

 


I have an issue, my crush washer that came with my BC 1.5 doesn't allow it to be timed correctly on the barrel. It touches the crush washer about a quarter turn past my desired timed position. That means that I have to either back it off an had like .010 gap between the washer and barrel/BC, or try and crank it 3/4  turn around the barrel to get it to be properly timed. I got it snug and tried to turn it some more but, decided to put a torque wrench on it while I was doing it and set the wrench to 30 ft/lbs and it barely moved before hitting my torque setting. Any suggestions as to what I could do? I am going to be silver soldering it this weekend.. Thanks SD79


You probably should use a peel washer instead.  I recently isntalled a BC 1.5 on my MRP barrel and I used a peel washer insted of the supplied crush washer.
Link Posted: 6/24/2011 8:21:12 PM EDT
[#24]
Originally Posted By INTrooper4255:
Originally Posted By SheepDog1979:
Originally Posted By WayneG:

Originally Posted By SheepDog1979:
Can you use mapp gas to heat up the muzzle break enough to get a good solder? Thanks SD79
Yes.  MAPP torch runs at 5300 °F.

 


I have an issue, my crush washer that came with my BC 1.5 doesn't allow it to be timed correctly on the barrel. It touches the crush washer about a quarter turn past my desired timed position. That means that I have to either back it off an had like .010 gap between the washer and barrel/BC, or try and crank it 3/4  turn around the barrel to get it to be properly timed. I got it snug and tried to turn it some more but, decided to put a torque wrench on it while I was doing it and set the wrench to 30 ft/lbs and it barely moved before hitting my torque setting. Any suggestions as to what I could do? I am going to be silver soldering it this weekend.. Thanks SD79


You probably should use a peel washer instead.  I recently isntalled a BC 1.5 on my MRP barrel and I used a peel washer insted of the supplied crush washer.


Thanks for the response.. Is it possible to use both the peel washer and the crush washer? I basically need to add .010 - .015 to allow it to be timed correctly.

Are the peel washers the same thickness as the crush washer? I know I can peel them down but, it either needs to be larger or I need to use two. SD79
Link Posted: 6/24/2011 9:07:52 PM EDT
[#25]
Originally Posted By SheepDog1979:
Originally Posted By INTrooper4255:
Originally Posted By SheepDog1979:
Originally Posted By WayneG:

Originally Posted By SheepDog1979:
Can you use mapp gas to heat up the muzzle break enough to get a good solder? Thanks SD79
Yes.  MAPP torch runs at 5300 °F.

 


I have an issue, my crush washer that came with my BC 1.5 doesn't allow it to be timed correctly on the barrel. It touches the crush washer about a quarter turn past my desired timed position. That means that I have to either back it off an had like .010 gap between the washer and barrel/BC, or try and crank it 3/4  turn around the barrel to get it to be properly timed. I got it snug and tried to turn it some more but, decided to put a torque wrench on it while I was doing it and set the wrench to 30 ft/lbs and it barely moved before hitting my torque setting. Any suggestions as to what I could do? I am going to be silver soldering it this weekend.. Thanks SD79


You probably should use a peel washer instead.  I recently isntalled a BC 1.5 on my MRP barrel and I used a peel washer insted of the supplied crush washer.


Thanks for the response.. Is it possible to use both the peel washer and the crush washer? I basically need to add .010 - .015 to allow it to be timed correctly.

Are the peel washers the same thickness as the crush washer? I know I can peel them down but, it either needs to be larger or I need to use two. SD79


You won't need them both, use just the peel.  It just varies on how much you'll need to peel, sometimes it doesn't take much.  I've done about 3 of them with peel washers and I think that it gives a much cleaner look.
Link Posted: 6/24/2011 9:46:41 PM EDT
[#26]
Originally Posted By INTrooper4255:
Originally Posted By SheepDog1979:
Originally Posted By INTrooper4255:
Originally Posted By SheepDog1979:
Originally Posted By WayneG:

Originally Posted By SheepDog1979:
Can you use mapp gas to heat up the muzzle break enough to get a good solder? Thanks SD79
Yes.  MAPP torch runs at 5300 °F.

 


I have an issue, my crush washer that came with my BC 1.5 doesn't allow it to be timed correctly on the barrel. It touches the crush washer about a quarter turn past my desired timed position. That means that I have to either back it off an had like .010 gap between the washer and barrel/BC, or try and crank it 3/4  turn around the barrel to get it to be properly timed. I got it snug and tried to turn it some more but, decided to put a torque wrench on it while I was doing it and set the wrench to 30 ft/lbs and it barely moved before hitting my torque setting. Any suggestions as to what I could do? I am going to be silver soldering it this weekend.. Thanks SD79


You probably should use a peel washer instead.  I recently isntalled a BC 1.5 on my MRP barrel and I used a peel washer insted of the supplied crush washer.


Thanks for the response.. Is it possible to use both the peel washer and the crush washer? I basically need to add .010 - .015 to allow it to be timed correctly.

Are the peel washers the same thickness as the crush washer? I know I can peel them down but, it either needs to be larger or I need to use two. SD79


You won't need them both, use just the peel.  It just varies on how much you'll need to peel, sometimes it doesn't take much.  I've done about 3 of them with peel washers and I think that it gives a much cleaner look.


Can I possibly use two peel washers if needed? What do you torque you muzzle device to?
Link Posted: 6/24/2011 9:56:51 PM EDT
[#27]
Originally Posted By SheepDog1979:
Originally Posted By INTrooper4255:
Originally Posted By SheepDog1979:
Originally Posted By INTrooper4255:
Originally Posted By SheepDog1979:
Originally Posted By WayneG:

Originally Posted By SheepDog1979:
Can you use mapp gas to heat up the muzzle break enough to get a good solder? Thanks SD79
Yes.  MAPP torch runs at 5300 °F.

 


I have an issue, my crush washer that came with my BC 1.5 doesn't allow it to be timed correctly on the barrel. It touches the crush washer about a quarter turn past my desired timed position. That means that I have to either back it off an had like .010 gap between the washer and barrel/BC, or try and crank it 3/4  turn around the barrel to get it to be properly timed. I got it snug and tried to turn it some more but, decided to put a torque wrench on it while I was doing it and set the wrench to 30 ft/lbs and it barely moved before hitting my torque setting. Any suggestions as to what I could do? I am going to be silver soldering it this weekend.. Thanks SD79


You probably should use a peel washer instead.  I recently isntalled a BC 1.5 on my MRP barrel and I used a peel washer insted of the supplied crush washer.


Thanks for the response.. Is it possible to use both the peel washer and the crush washer? I basically need to add .010 - .015 to allow it to be timed correctly.

Are the peel washers the same thickness as the crush washer? I know I can peel them down but, it either needs to be larger or I need to use two. SD79


You won't need them both, use just the peel.  It just varies on how much you'll need to peel, sometimes it doesn't take much.  I've done about 3 of them with peel washers and I think that it gives a much cleaner look.


Can I possibly use two peel washers if needed? What do you torque you muzzle device to?


I suppose if you needed the added length you could, but there shouldn't be any need for it.  You'll just need to torque the muzzle device to the manufacturers specifications.

Link Posted: 6/25/2011 12:00:39 PM EDT
[#28]
So, I played with the crush washer a little more today before I went and ordered a peel washer. I was able to get the crush washer to "crush" enought to get the BC 1.5 to time correctly. Thanks everyone for your input and advice! What would I do without you guys..

I am not just waiting for my heat paste to arrive and I will be soldering it together! I will be sure to take some pics in the process!
Link Posted: 6/25/2011 12:44:11 PM EDT
[#29]
Originally Posted By 79rallysport:
There is another way to pin it on without a welder. A local gunsmith showed me this .
Drill a hole through the flash hider and in to the barrel slightly. Pull the hider back off and tap the hole with threads. Reinstall the flash hider with the threaded hole lined up with the hole in the barrel. Take a extra long set screw with loctite and thread it into the hole. It should bottom out in the hole and leave the head above the surface. Now grind off the head and shape to the hider. If your careful you only need to touch up the round shiny spot.


That is not legal.  

[/quote]

Anyway.. heres a sample of that idea.. this is a std 16" barrel SAIGA 308 with a BRAKE being PINNED on it..



I sold that Saiga recently and the buyer DID NOT care about the 'pin' or not as he was in a NORMAL state  

This is a DPMS 556 that I did recently.. I did 'weld' over the pin and made pretty with a Dremel..



Both BRAKES used RED LocTite also on the screws and the actual barrel threading..

it 'THE LAW' wants to mess with you to the point of inspecting yout firearms THAT CLOSELY.. you are SCREWED from the gate.. IMHO..





Link Posted: 7/16/2011 7:04:03 PM EDT
[#30]
Ok, so im going to build a 14.5, i would like to use a surefire comp. BCM states they had 1.83 to the barrel so itll be fine length wise. has anyone done this with a sure fire brake? and ive heard that silver solder messes up the finish. just trying to get information out of this.
Link Posted: 8/21/2011 4:43:27 PM EDT
[#31]
Schuster manufacturing is AWESOME at pinning flash hiders...you have to examine it carefully to even figure out where the weld is. They either TIG or laser weld it.

http://www.schustermfg.com/
Link Posted: 8/28/2011 11:57:41 PM EDT
[Last Edit: angryguns] [#32]
would this work?

midway silver solder
Link Posted: 8/30/2011 5:15:19 AM EDT
[#33]
Originally Posted By angryguns:
would this work?

midway silver solder


It does not list the temperature rating. It might not meet B.A.T.F. regs. Go with Brownells 1200 degree.
Link Posted: 8/31/2011 11:27:02 PM EDT
[#34]
I agree with you. I live in NJ, United Socialist Republic of, and we are required to install it this way. Oh, and did I mention that we cannot purchase anything that is sold as a "flash hider" or "flash suppressor" to install on our GUNS (emphasis added). Just had to felt that off of my chest. Lastly, If I lived in a "free" state, this issue would be the last of my concerns, but if he wants to install the FH that way, more power to 'em.
Link Posted: 8/31/2011 11:29:30 PM EDT
[#35]
Your instruction was very useful as I always wondered how it is done without screwing up the barrel...thanks.
Link Posted: 10/13/2011 12:13:38 PM EDT
[#36]
Any post ban gun I've seen from Stag Arms "looks" like it's just pinned, and not welded over.
Link Posted: 10/19/2011 11:56:32 AM EDT
[Last Edit: NotAbeaR] [#37]
Just finishing up soldering my comp. looks good had a little scorch. I was able to find the solder and flux at local Airgass store.
To clean up the scorch i had i used a brass brush and some rubbing compound looks good will post pic soon.

Edit : The product was Radnor Safety-Silv 56 it came with some solder and special flux for it think it was $30 and i only used about a inch of it is a 1150 degree silver solder


http://img849.imageshack.us/img849/1879/img0370x.th.jpg

Uploaded with ImageShack.us

Im going to duracoat the comp cause i used a little to much solder.. next time i will use the chalk method to keep it cleaner but it was my first one.

And Now the painted Results

http://img191.imageshack.us/img191/154/photo1zo.th.jpg

Uploaded with ImageShack.us

Looks Awesome...
Link Posted: 11/11/2011 1:16:52 AM EDT
[#38]
Looks great, I will have to do the same thing when I receive my mini SASS barrel. What about just using Red Loctite, lol, such a dumb law.
Link Posted: 11/30/2011 4:54:14 PM EDT
[#39]
About how long did it take you guys to get the metal to turn "blood red" as mentioned earlier in the thread?

I tried this for the first time (had the materials for almost 2 years before deciding to try it) and I went at it with a MAPP torch (benzomatic TS8000) for about 10 solid minutes and never saw a change in color.  It got extremely hot as I could hear the hylocool boiling away underneath the wet rags.  But I never saw a change in color like the one post mentioned.  

I'm soldering on a Battlecomp 1.5 if that makes any difference.

But I'm letting it cool down now and will try and take it off with a wrench in 30 minutes or so.  Then we'll see if it worked, or if it truly didn't get hot enough.
Link Posted: 12/1/2011 7:10:48 PM EDT
[#40]
That is why I will only use an Oxy-Acetylene torch to heat up the flash suppressor/barrel. A little over a minute and all you have to do is wait for it to cool down.
Link Posted: 12/1/2011 9:54:12 PM EDT
[#41]
I use my Oxy/Mapp rig, it seems to get the metal to the right temp much faster then straight Mapp.
Link Posted: 12/19/2011 10:24:35 PM EDT
[#42]
Im just curious, some people in the past 8 pages have had some charring. Are these people putting the flame direct on the parts?

I have an oxy/acetylene torch at work and I should be able to heat the parts up to temp without the flame actually touching anything. Can charring occur lie this or only from direct flame contact?
Link Posted: 12/21/2011 2:46:56 PM EDT
[#43]
Does anyone know if the Silver Solder method is legal in NJ?   I know Batf is ok but jersey might be different.....

Link Posted: 2/5/2012 1:22:34 AM EDT
[#44]
Here in NJ the cops/NJSP are trained to look for a welded spot on the brake/comp. The only real way to test it is for them to take your gun and torque the brake/comp until it breaks off. IMHO if they are looking at your gun that hard this may be the least of your worries. Also I would say 80% of all the cops I know that would even see your gun would have no idea. The pin/weld method is the current method shown to NJSP by their firearms division. Same goes for the buttstock. I can make my magpul non-collapsable without pinning it via modifying the mechanism (using tools and I would need tools to reverse it). LE though, looks for a roll pin through the stock. I am not drilling my damn stock. IF they or I cannot physically collapse it, it is non-collapsible. All these methods are reversible with the right tools. NJ is crazy
Link Posted: 4/11/2012 6:50:34 PM EDT
[#45]
I assume nothing is different when using a stainless steel barrel?

Posted Via AR15.Com Mobile
Link Posted: 4/17/2012 10:43:42 PM EDT
[#46]
where states have their own AWB, like NY, threaded barrels are a no go. doesnt specify  other thna that. so , vene if its soldered, welded or whsatever, if there are threads under the Brake, you are in violation. How can they tell, its calleed an Xray. easy and cheap to do in order to prosecute you. Dont htink they will? think again. in NY they are prosecuting for post ban mags. each one you get caught with is a CPW charge; a felony. I dont agree but thats what it is. In NY, you have to have clean barrel, no threads, pin and wled or Silver Solder. your choice. I have done both.
Link Posted: 4/23/2012 10:34:55 PM EDT
[#47]
I have tried 3 times to get this to work. After an hour I'll try to turn it off and feels solid as can be. Then the next day my roommate pops it off each time.

Posted Via AR15.Com Mobile
Link Posted: 4/30/2012 3:47:33 PM EDT
[#48]
Originally Posted By huntgrouse:
where states have their own AWB, like NY, threaded barrels are a no go. doesnt specify  other thna that. so , vene if its soldered, welded or whsatever, if there are threads under the Brake, you are in violation. How can they tell, its calleed an Xray. easy and cheap to do in order to prosecute you. Dont htink they will? think again. in NY they are prosecuting for post ban mags. each one you get caught with is a CPW charge; a felony. I dont agree but thats what it is. In NY, you have to have clean barrel, no threads, pin and wled or Silver Solder. your choice. I have done both.


Yes, but i think the common wisdom here is that a soldered/welded brake becomes part of the barrel for all intents and purposes.  

Link Posted: 4/30/2012 4:12:25 PM EDT
[#49]



Originally Posted By PursuitSS:



Originally Posted By angryguns:

would this work?



midway silver solder




It does not list the temperature rating. It might not meet B.A.T.F. regs. Go with Brownells 1200 degree.
Read the reviews:


Grobet PN 54.830 "Easy-silver" 1240°F (671°C) Meets ATF standard for
permanent attachment of muzzle devices to extend overall legal barrel
length (>1100°F
http://www.atf.gov/publications/download/p/atf-p-5320-8/atf-p-5320-8.pdf
- Ch 2.1.3). Used this product to affix a Vortex flash suppressor
(Midway product 711620) to Colt 14.5" M4 barrel to legally achieve a
>16" barrel length.   Use liberal amounts of heat-stop paste (Midway
product 581964) to prevent heat transfer and excessive discoloration
during soldering process. Follow instructions on package and make SURE
both surfaces are cleaned with degreaser (I used acetone) to promote a
solid bond. DO NOT QUENCH! Once fully cooled, attempt to remove muzzle
device to ensure complete (and legal) bond. I doubt the ATF will accept
laziness as an excuse. Don't trade your freedom for a life in orange
jumpsuits on shoddy prep work!


Five black holes would be my rating. It was a total fail for my
application of 400 series stainless steel freshly machined and
degreased. The flux attacked the surface and blackened and scaled it
before the carrier solvent had boiled away. When the silver did melt it
formed small balls floating in the toxic mess that used to be my parts.
Classic wire and paste flux worked perfectly on the replacement parts.

 
Link Posted: 6/6/2012 2:30:32 AM EDT
[#50]
So, will a propane torch get hot enough to do a pin and weld? I know you guys seem to favor the SS, but I need to know if I need to get Mapp fuel for this.

Thanks!
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