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Old 12-07-2017, 01:46 AM   #1
akfaldude
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Default Pap bayo lug fix tips?

Have a nuetered pap gb i want to put the bayo lug back on, looking for tips and tricks...
Going to machine the lug piece, was planning on drilling a hole thru the center of it and tig plug welding the lug to the neutered rod holder...
Questions...is this the best way to do this?.

Should i machine a brass rod to fill the cleaning rod hole so it keeps its shape while welding?

Should i do the welding while the gb is installed and pinned onto the barrel, or slid onto a machined steel dowel, or just clamp the block in a holding fixture and go to town?

Tips and thoughts are appreciated.
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Old 12-07-2017, 02:23 AM   #2
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Is removing the front sight block and pressing on a surplus block not an option?
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Old 12-07-2017, 10:50 AM   #3
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it would be an option if i can find a gb with the bayo lug intact and a sling loop. I need the sling loop on the gb.
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Old 12-07-2017, 02:22 PM   #4
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Been a while since I checked around even though I`m in the same boat with my NPAP-DF. Last I checked APEX was out of stock, what about RTG?
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Old 12-07-2017, 08:45 PM   #5
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ive searched extensively, there are no gas/bayo/sling loop gb (original m70)out there that i can find,
i wish some experts would join the thread and give some advice on the best way to accomplish this.
Come on gunsmiths, let us know the best way to accomplish this.
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Old 12-07-2017, 08:50 PM   #6
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Pretty sure I've got a couple of the m70 with the sling loop and bayo lug out in the garage. As far as npap gas blocks go, I've got a couple of those to restore the lug on, was just gonna hit the sides with a bead of weld and shape the ears of the lug with a file/dremel
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Old 12-08-2017, 01:06 AM   #7
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Es,, have you brought a bayo lug back to life before? Do you tig or mig it.
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Old 12-08-2017, 01:18 AM   #8
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Quote:
Originally Posted by es View Post
Pretty sure I've got a couple of the m70 with the sling loop and bayo lug out in the garage. As far as npap gas blocks go, I've got a couple of those to restore the lug on, was just gonna hit the sides with a bead of weld and shape the ears of the lug with a file/dremel
This
Tig or mig is fine. Yes I've done it half dozen times
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Old 12-08-2017, 01:26 AM   #9
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Quote:
Originally Posted by akfaldude View Post
Es,, have you brought a bayo lug back to life before? Do you tig or mig it.
Nope, but I've done some cosmetic repairs on dinged/marred components and welded sights onto gas blocks, stuff like that. If I had mig I'd use that but all I've got at the house is flux core--not ideal but it works well enough for most of the little stuff I've needed to do. I'd definitely like to upgrade to a gas welder soon. I had just gotten the funds together to get one and then I found a steal of a deal on a .223 saiga, so it's gonna have to wait a little longer lol. I'll probably attempt one of the NPAP gas blocks tomorrow, can report back with pics if I get around to it. Like MIG said, either tig or mig should work fine
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Old 12-08-2017, 10:49 AM   #10
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The gas valved M70 gas blocks and night sight FSB's got pretty scarce with the latest model PAP imports.
I had the spare parts to retrofit an N-PAP with the M70 GB & FSB. Swapped out the furniture and pistol grip while I was at it..

A weld bead on the bayo lug and some file and rotary tool will repair the bayo lug. Can be done on the rifle if done carefully to avoid too much heat.
Or pull the FSB & GB and do an off the barrel lug resto.





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Old 12-08-2017, 05:19 PM   #11
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Quote:
Originally Posted by akfaldude View Post
Es,, have you brought a bayo lug back to life before? Do you tig or mig it.
Quote:
Originally Posted by es View Post
Nope, but I've done some cosmetic repairs on dinged/marred components and welded sights onto gas blocks, stuff like that. If I had mig I'd use that but all I've got at the house is flux core--not ideal but it works well enough for most of the little stuff I've needed to do. I'd definitely like to upgrade to a gas welder soon. I had just gotten the funds together to get one and then I found a steal of a deal on a .223 saiga, so it's gonna have to wait a little longer lol. I'll probably attempt one of the NPAP gas blocks tomorrow, can report back with pics if I get around to it. Like MIG said, either tig or mig should work fine
Here you go:







Very quick, easy job. Just a little weld along the sides and some hand filing. Used a cheapo flux core welder with .30 wire on low heat, low feed speed and just ran a little bead across the rounded edge, brushed clean, and reapeated about three times so that there was a nice ridge built up that I could work with. Will clean it up the corners a little sharper some other time when I can find the correct file, but it snaps into a bayo just fine--actually fits a little nicer than the m70 block does. This was a test run, but I've got another I need to do so if I can remember to I'll take a couple pics while the restoration is in progress.
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Old 12-08-2017, 05:32 PM   #12
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thanks folks for chiming in, feel more comfortable about doing it now.

Nice m70,,the more i see those the more I need to build one for my next.
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Old 12-08-2017, 05:34 PM   #13
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oh, that looks nice, great job es.
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Old 12-08-2017, 08:42 PM   #14
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Default Bayo lug

You'll say I'm crazy but years ago I had a couple M90's. I used a #43 cobalt bit and a 4/40 tap to center a small threaded hole. Then fabricated a small piece of metal shaped just like original. Loctite and re bluing and whalahhh!

Sold them both with no complaints
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