Yes and no, the pressure is all in the chamber, where there might be stress is with fully loaded magazines, but I doubt it will be an issue.
Some manufacturers have made lowers out of polymer, so a hairline crack that doesn't run the length of the receiver should be safe to shoot, but just keep an eye on it.
Sent from my SM-S908U using Tapatalk
It can be welded, the technology has been available for a couple years. Finding a welder in your local area who does it, and uses the correct materials to do it might be a bit harder.
Friction stir welding (FSW) is one method which touts the ability to weld 7075. Nanoparticle-enhanced aluminum 7075 wire welding appears to my ignorant knowledge base to be a slightly better option, though it probably lies somewhere between preparation and temperatures used with the NPE wire.
Stick
Board policy mandates I state that I shoot for BCM. I have also done work for 200 or so manufacturers within the firearm community. I am prior service, a full time LEO, firearm instructor, armorer, TL, martial arts instructor, and all around good guy.
I also shoot and write for various publications. Let me know if you know cool secrets or have toys worthy of an article...
Flickr Tumblr Facebook Instagram RECOILMAGAZINE OFF GRID RECOIL WEB
Stick
Board policy mandates I state that I shoot for BCM. I have also done work for 200 or so manufacturers within the firearm community. I am prior service, a full time LEO, firearm instructor, armorer, TL, martial arts instructor, and all around good guy.
I also shoot and write for various publications. Let me know if you know cool secrets or have toys worthy of an article...
Flickr Tumblr Facebook Instagram RECOILMAGAZINE OFF GRID RECOIL WEB
What are the odds it’s an actual crack in the aluminum as opposed to just the cerakote or anodizing? If I remember correctly someone on the other site dropped the hammer on a 6061 80% lower hundreds of times before seeing any damage. I would think 7075 could handle a few strikes just fine.
True that 7075 is stronger than 6061, but it's also harder and more brittle, so maybe it's more prone to cracking?
The cerakote is actually a bit of a concern, because cerakote doesn't seem to be as hard or brittle as anodized aluminum, and I'm wondering if the crack underneath the cerakote is more extensive that what it shows on the surface.
Last edited by ta0117; 05-25-22 at 19:00.
Absolutely no offense or insult intended, but why?
This isn't a registered MG receiver, just get a new one and move on lesson learned. If this is a "save my life" firearm, you really want to trust it to epoxy? I'd even be willing to bet Noveske might cover it under warranty, give them a call and find out. If not having them replace the receiver can't be too damn expensive.
Last edited by SteyrAUG; 05-26-22 at 00:42.
It's hard to be a ACLU hating, philosophically Libertarian, socially liberal, fiscally conservative, scientifically grounded, agnostic, porn admiring gun owner who believes in self determination.
Chuck, we miss ya man.
كافر
to do a proper JB Weld repair you need to open up the area of the crack. Remove enough material so that you can fill in with the mix. I would remove all of the crack from both sides. Leave the ground out portion rough so the weld will have better grip. JB Weld is very strong and can be a very effective repair. Good luck!
Billy
US Army Retired, NRA Life member, M/C mechanic, Gunsmith
Shoot it. It will either be fine, or get worse.
I strongly suggest that if you try any half-arsed JB weld repairs, it will make a useless mess.
Bookmarks