JB weld for SKS rail ?
- Thread starter noea77
- Start date
I used JB weld in place of a heli coil, you can machine it after the fact, it even has a Rockwell rating if I am correct. Thing is though the above poster is right, the bolt cover is not stationary, you will be better in the long run to get a wartak rail
Thanks for the info guys. I hear you about the stationary part. Might be a bit rough on the receiver when firing lots at a time and eventually come loose. Is that what you mean by 'The bolt cover is not stationary, so it will likely not be repeatable." ? I will be using a standard sized 3-9x40 scope. What I might do is use JB weld to mount the bottom first so its on perfect, then see if someone at work can weld the sides together so it never comes loose or use a blow torch and get some good welding/solder wire and do it myself. Thanks again
antiqueguy
CGN Ultra frequent flyer
- Location
- windsor ontario
the bolt cover is removed for cleaning and unless you are not shooting corrosive surplus you would have to remove it every time you shoot it to clean the bolt of the corrosive salts
If you are going to do metal work, brazing in your case will be the better of both evils, then get a copy of the machinery handbook and re heat treat afterwards, Welding and brazing will change the lattice of the metal, and it will become soft. You need to rearrange those molecules to make them strong again. If you are alright with annealing metal and heat treating go for it, the easy way is to buy a $114 wartak rail.
By repeatable, I mean the optic producing the same point of aim/impact with each shot. If the recoil does not result in small changes in POA, removing the cover to clean and replacing it probably will. This is a common problem with the commercial mounts that replace the existing cover.
safehunter
Regular
- Location
- South Western Onterrible
I've used jb weld for a rds scout mount on a shotgun barrel. Slugs eventually broke it twice but the third time is holding. Degrease/ clean thoroughly and use 99% isopropyl alchohol for the final clean. Also quick weld broke, regular long cure is what's holding. If it holds up to slug recoil the sks should be a breeze. ugly as sin though.
That being said, what's said above about receiver mounts is valid, too much jiggle, re zeroing. I went with a BC tactical scout mount and trs-25. Couldn't be happier. Rock solid and stripper clips.
That being said, what's said above about receiver mounts is valid, too much jiggle, re zeroing. I went with a BC tactical scout mount and trs-25. Couldn't be happier. Rock solid and stripper clips.
If you really want to mount anything to the cover, get a proper weaver rail and D&T it. That way it's as solid as it can get and it can be removed with the exception of the holes. Remember that the cover is just that a cover. It also has the loading force of the return spring under tension of the bolt carrier moving rearward. It's a part that was meant to do just a few things. Now people want to add a scope changing the forces applied to it. Consider how the rotational forces act on the forward tabs or tangs that lock down the front of the cover that hold it in place. How will they hold up? Short term go for it. Long term, a mount attached to the receiver is more solid. Murray's guns has a mount that bolts to both sides of the receiver evening out the various recoil forces. Not sure if anyone has tried it yet.
