Broken SBR lower, can ir be fixed?

[ginger]

Shooting my SBR a little while back and the lower broke at the rear takedown pin. People have told me this can be welded, any chance that's true? Also, do you guys think it's just a bad lower or is there a chance being over gassed can cause this?

Rifle:
MAG Tactical lower
Jp Captured spring
WMD NIBX BCG
10.5" 300blk barrel
Pistol length gas system
Noveske KX3

 

[dhamby]

I'm no metallurgy expert but the mag tactical lower is a magnesium infused aluminum which I don't believe you cannot weld magnesium.

 

[Rookie]

Yes, it can be welded.

BUT!!!

1. It's a magnesium alloy. This means it's going to narrow the field of people willing to touch it. This also means it will cost more.
2. You have to refinish it.
3. A quick Google Search shows that you aren't the only one with this issue.

With all that, I doubt it would be cost effective to fix it instead of replace it since you're still left with a lower that is prone to break. It sucks that you're out the lower and $200, but at some point you're just polishing a turd.

 

[Rookie]

I don't know about out 200. You can get an 80% lower, finish it and duplicate the serial number from your current lower. Then destroy the current one completely. Still unique at that point.....

I wasn't sure if you could do that, so I didn't suggest it. I know the manufacturer can, but they're out of business.

 

[KUJO2388]

This is not true. You would be manufacturing a new SBR.

I don't know about out 200. You can get an 80% lower, finish it and duplicate the serial number from your current lower. Then destroy the current one completely. Still unique at that point.....

 

[Trigger Time]

Mag tactical lower. What a surprise .... NOT. They are ****. Don't buy them. A lot of them break. A lot. This has been a public service announcement of my opinions based on things I've seen with my own two eyes.
Sorry your lower broke. Maybe your bad experience will save others from buying one of these pos lowers

 

[Thegeek]

Not sure what information is on the form for that, or if an ATF agent could tell the difference.

 

[KUJO2388]

Not sure what information is on the form for that, or if an ATF agent could tell the difference.

The make and model are listed on the form, along with other information. It is not worth the $200 savings to go against federal law by manufacturing a new SBR. Law abiding gun owners should follow all laws, not just try to trick an ATF agent.

 

[Vigilant]

I don't know about out 200.....

Horrible, illegal advice!

 

[curraheeguns]

Not sure what information is on the form for that, or if an ATF agent could tell the difference.

Awesome idea, except for the $100k fine and 10 years in prison.

How could you not think ATF would be able to tell the difference between a home made lower and a proprietary light weight magnesium alloy receiver? Not to mention they keep records of manufacturer markings for future use.

 

[ginger]

I bought it when they first came out. Trying to support local business and all. I talked to the owner awhile back about them being made of magnesium when I was gonna recoat a couple, he said there is so little in it that it doesn't matter. I figured I was SOL, just thought I would ask. Thank you guys!

 

[Trigger Time]

Not sure what information is on the form for that, or if an ATF agent could tell the difference.

You should seriously be banned for even suggesting this.

 

[Vigilant]

You should seriously be banned for even suggesting this.

Maybe he should just delete? But I agree, posting up directions to commit a felony as advice is at best, stupid, and at worst criminal!

 

[OutdoorDad]

Felonies are actively recommended here every day.


Just usually not firearms related.

 

[OakRiver]

Not sure what information is on the form for that, or if an ATF agent could tell the difference.

The purple was implied, right?

 

[Thegeek]

No. I'm not quite sure how it would be illegal. I'm not trying to skirt federal law or anything. It's not like you'd have multiple items with the same serial number, so how is it illegal? I've done a little reading, and IANAL but I don't see anything which would prohibit component replacement.

It's a serious question. If I took my S&W lower and built an SBR, I'm the manufacturer at that point, right? I'm really not suggesting that someone do something illegal, but how would this not be legal as long as the original is completely destroyed?

 

[17 squirrel]

Send it to someone who does Micro welding for a living.

Gun Repair | Micro Precision Welding

 

[KUJO2388]

When doing a Form 1 you are not given the same privileges of manufacturing replacement parts as a 07/02 or other license holders. It is the same for a Form 1 Suppressor, once the suppressor is complete you cannot replace old baffles with new baffles. I think you need to spend a little more time "reading" before you give more advice. Like I stated before, you give all the info such as make and model to the ATF on your Form 1 and they approve it to be manufactured into a SBR. Even if you used an 80% type lower (you can and it has been done) you still cannot just make another with the same serial number.

No. I'm not quite sure how it would be illegal. I'm not trying to skirt federal law or anything. It's not like you'd have multiple items with the same serial number, so how is it illegal? I've done a little reading, and IANAL but I don't see anything which would prohibit component replacement.

It's a serious question. If I took my S&W lower and built an SBR, I'm the manufacturer at that point, right? I'm really not suggesting that someone do something illegal, but how would this not be legal as long as the original is completely destroyed?

 

[Cameramonkey]

No. I'm not quite sure how it would be illegal. I'm not trying to skirt federal law or anything. It's not like you'd have multiple items with the same serial number, so how is it illegal? I've done a little reading, and IANAL but I don't see anything which would prohibit component replacement.

It's a serious question. If I took my S&W lower and built an SBR, I'm the manufacturer at that point, right? I'm really not suggesting that someone do something illegal, but how would this not be legal as long as the original is completely destroyed?

Its .gov. Logic goes out the window. Even the original manufacturer cannot take back a defective lower, destroy it and re-issue a new one with the same serial. I fell for that logic a while back on a similar issue and had the destroy/reissue idea. (But it was the original manufacturer doing the destroy/reissue to avoid a new transfer) Regardless of how simple and straightforward it seems, uncle sam has other ideas.

But to claim you can destroy my product, produce a lookalike yourself and give it my product's unique identifying mark is downright foolish.

 

[Trigger Time]

Its .gov. Logic goes out the window. Even the original manufacturer cannot take back a defective lower, destroy it and re-issue a new one with the same serial. I fell for that logic a while back on a similar issue and had the destroy/reissue idea. (But it was the original manufacturer doing the destroy/reissue to avoid a new transfer) Regardless of how simple and straightforward it seems, uncle sam has other ideas.

But to claim you can destroy my product, produce a lookalike yourself and give it my product's unique identifying mark is downright foolish.

That's not necessarily true. I know someone who had a MAJOR manufacturer replace their broken factory SBR lower with a brand new one. Same serial number as the old.