finishing upper for 80% receiver build

[7.62x39]

I finally received all the parts I was waiting for to finish this rifle.

First I pinned the MD on. (normally I silver solder the MD on, but that was not an option with a SS barrel) I spot drilled it then attached to the barrel, finished drilling the hole and pinned it. I do not have a TIG so I took it to a buddy who does.

Once the MD was finished I polished the feed ramps and installed the barrel on the upper.

 

[7.62x39]

Here's a couple of finished pics.

 

[marvelshooter]

I agree about pinning and welding the brake but not because the barrel is SST. I have silver soldered plenty of stainless at the shop. I wouldn't do it to hold a brake because it takes a lot more heat than tig welding the tip of a 1/8" pin.

 

[DJ_99Wing]

Here's a couple of finished pics.

Finished product looks great...

 

[dropride]

Nice job

 

[slugworth]

Looks great!!!

 

[7.62x39]

I agree about pinning and welding the brake but not because the barrel is SST. I have silver soldered plenty of stainless at the shop. I wouldn't do it to hold a brake because it takes a lot more heat than tig welding the tip of a 1/8" pin.

Exactly. I can refinish a moly barrel to get rid of the damage from the heat, on a satin finish SS barrel, not so much.

 

[Hardwired]

Nice build.

What are you using for a brake on the SS barrel?