Warning

 

Close
Confirm Action

Are you sure you wish to do this?

Cancel Confirm
AR15.COM
AR Sponsor
6/9/2010 10:25:40 AM EDT
My dad and I were trying to silver solder a AAC Brakeout to my 14.5" DD CHF barrel and it was a total disaster. The silver solder was the wrong type, which now I know the right one and I am just waiting for the new Brakeout to come since we messed it up so bad. Anyways, the silver solder ran down the barrel about an inch from the crown. We had to heat it up multiple times to remove most of the solder. Doing this made the last 3-4" of the barrels finish get majorly discolored. I am in need of some advice as to what kind of finish to put on it that will stand up to the heat of the barrel but will be as close to the phosphate finish on the barrel. The problem is that I cut down my FSB to make a low pro gas block and then had to grind the tips off of the pins so that it would fit in the DD lite rail. Now I can not remove the FSB/gas block, which means that I can not remove the barrel nut. so what ever finish I put on it, I will need to be able to do it with the Gas block and barrel nut still on the barrel. I wouldnt mind putting the finish on the full barrel and gas block and just taping the barrel nut. I just need to know what brand of finish will produce a similar color to the black finish on my DD upper receiver, nothing shiny, just flat black. Any input is greatly appreciated. THanks
6/9/2010 10:55:03 AM EDT
[#1]
Black-flat

Norrells
6/9/2010 10:57:05 AM EDT
[#2]
If the barrel is just oxidized you can polish/scrub it off. Maybe some #0000 steel wool? Try VERY lightly and see how it does.



Also, in the future: HEAT STOP PASTE will prevent the discoloring. It's cheap and you can get it at Brownells.
6/9/2010 12:38:26 PM EDT
[#3]
Should of just got a 16" and saved a lot of trouble.
6/9/2010 12:46:19 PM EDT
[#4]
No mention in the original post about what you used to heat it, but here's something - if you use a MAPP Gas cylinder, it'll heat up alot faster than using propane.  I use MAPP Gas for everything I have to heat.
6/10/2010 5:35:27 AM EDT
[#5]
We did you the MAPP torch.
AR Sponsor