80% lower ?

[croc4]

So if one was to take a little too much from the pocket area where the rear take down pin log fits, would using the aluminum soldering/brazing rods to build the area back up actually hurt the lower with the heat required?


Thanks,

Croc4

[Noobert]

Can you show us where through a pic? You might not even need to add metal, since some parts are low stress

[BSlacker]

Need a picture. It would be hard to cut too much from that area. Unless you broke through the outside of the lower how is function affected?

[CHAD PEZZLE]

If it's a forged 7075 lower like most are made from, it doesn't weld very well. You're likely to make a bigger mess. As long as you didn't blow completely through, you should be okay. Like others have said most areas of the lower are low stress.

Chad

[DB2]

I assume the upper is sloppy from side to side?

You would be better off using a shim and an accuwedge. That's not a heavy stress area.

[croc4]

no pic ;-(

I don't have a pic, but I cut the pocket to .5175, should be .50 if I'm not mistaken, now I know that this is not a huge issue, it bugs me more than anything. When I place it on the upper there is some play left to right at the rear. I know I'm being anal, but I like to get things right, so this over cut just pisses me off.

Croc4

[jamesob]

an accuwedge would probably make it much tighter from side to side as well as up and down.

[Noobert]

find some washers?

[Mud]

Just get some release agent on the upper and use some Acraglas to bed the upper in the Lower. Let dry and then remove upper. Just use a little Acraglas as it should not need much to fill that gap. Use a Release Agent though

[gottarollwithit]

Mud's got a good idea here. Lower's are just made of Alu and aren't a stressed part of the rifle. The accuwedge might give you enough to tighten up the lower/upper fit.

As for the brazing rod thing, what are you thinkin here? Are you going to use a Mapp torch or???
You might be able to fill the hole with a TIG and then redrill it. Would also be a giant hassle though.

[command_liner]

Is it too big all the way around? If so, just cut a piece of steel shim stock to fit
in place, then use JB Weld to hold the patch in place.

[chuck762]

Just get some release agent on the upper and use some Acraglas to bed the upper in the Lower. Let dry and then remove upper. Just use a little Acraglas as it should not need much to fill that gap. Use a Release Agent though

That is what i would do except I use devcon steel epoxy for stuff like that. Either will work well. I bed the locking lug area on FAL rifles if they are too sloppy and move side to side.

[croc4]

thanks guys

I think I'll go the acraglass option, or a shim, something along those lines.
I just got sloppy on the final cut ;-( when milling it out.


Croc4