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Old 04-01-2014, 05:10 AM   #1
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help identifying specific trigger group part

I can't for the life of me figure this out.

I've got a trigger group from what I believe is an M1 carbine (my late grandfather threw a bunch of parts into a box for me as replacements for my M1), but I cannot for the life of me identify a specific part on the trigger group and was hoping you all could help me.


I can't find this part on any diagram I pull up on the net. It's the part right "in front" of the Hammer with the "B" stamp.

Side View- part is to the right of the hammer:




Top view- to the left of the "gap"




Back view (blurry, sorry)- meant to so the "hook" for lack of better word on the side of the part (on the right)





any help is appreciated folks! Thanks!
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Old 04-01-2014, 05:16 AM   #2
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That is for an M-2 carbine and is bad news if in a gun.
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Old 04-01-2014, 05:19 AM   #3
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Selector Switch?

(Fun stuff, but some folks get downright annoyed by people having that kind of fun.)
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Old 04-01-2014, 05:19 AM   #4
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Quote:
Originally Posted by Charlie Petty View Post
That is for an M-2 carbine and is bad news if in a gun.
Oh yeah? Why is that?


(Really not as knowledgeable as I should be with specific gun parts)
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Old 04-01-2014, 05:42 AM   #5
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Originally Posted by Clarka3 View Post
Oh yeah? Why is that?


(Really not as knowledgeable as I should be with specific gun parts)
Because that makes it an illegal machine gun, heavy, heavy federal penalties and jail time. I think that may be an M2 disconnecter. It's not the selector switch.
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Old 04-01-2014, 05:49 AM   #6
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ah, so it's not even worth selling then?

I definitely don't want to swap it in as a replacement if it's illegal.
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Old 04-01-2014, 07:13 AM   #7
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Clarka3,

It is NOT unlawful to possess IF it is NOT installed in a firearm.

Also, someone who already has a REGISTERED/LICENSED M2 carbine may well need & be willing to buy or barter for the part.

yours, sw
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Old 04-01-2014, 07:20 AM   #8
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Originally Posted by stand watie View Post
Clarka3,

It is NOT unlawful to possess IF it is NOT installed in a firearm.

Also, someone who already has a REGISTERED/LICENSED M2 carbine may well need & be willing to buy or barter for the part.

yours, sw
thanks for the clarification.

another question- how in the world would I even find somebody with a license?

Would it just be smarter to take it to a local gun store and sell/consign it through them?

I definitely have no need for it now that I know what it is.


you guys are pretty awesome, by the way.
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Old 04-01-2014, 11:13 AM   #9
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That is the secondary disconnector. It trips the sear when the slide hits the disconnector bar, when the bolt locks.

While it may be okay to have in possession on a Federal level, some states will still declare your gun a machinegun even if don't have it in the gun. If the gun is not already a machinegun, you'd be best off just getting rid of the part; especially since it's posted on the internet. Such parts just create headaches.

Last edited by Kevin Gibson; 04-01-2014 at 11:16 AM.
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Old 04-01-2014, 11:21 AM   #10
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That is the secondary disconnector. It trips the sear when the slide hits the disconnector bar, when the bolt locks.

While it may be okay to have in possession on a Federal level, some states will still declare your gun a machinegun even if don't have it in the gun. If the gun is not already a machinegun, you'd be best off just getting rid of the part; especially since it's posted on the internet. Such parts just create headaches.
yeah it's already causing headaches because I can't just list the part on ebay due to the nature of legality of it now. What's the best way to sell it?

Thanks for taking the time to respond!
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Old 04-01-2014, 03:29 PM   #11
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You would probably have to find a class III dealer(machine gun dealer) who would be willing to sell it for you. Then he gets a cut also. I think it's just a big headache. I would probably lose it in a river.
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Old 04-01-2014, 04:34 PM   #12
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Hold up a second.

Yes that is a M2 Carbine full-auto disconnecter.
The presence in the Carbine is not illegal under Federal law. In fact, a lot of the Carbines sold by the US Government under the old DCM program came with the disconnectors still in the trigger group.
Some State laws may vary.

Some full-auto parts in the Carbine are not illegal AS LONG as the Carbine doesn't have ALL the full-auto parts and isn't capable of full-auto fire.
As example a LOT of Carbines were sold by the government with full-auto M2 slides, trigger guards, sears, and disconnectors.
As long as the trip lever, selector switch and selector switch spring are not present, the rifle is legal.
This is not really different from having a M16 bolt carrier in a commercial Colt M4 rifle.

The M2 disconnecter in itself is not illegal and you can sell it or give it to anyone. As long as your state doesn't have some odd ball law, it's legal to have the disconnecter in your Carbine.
Many surplus parts sources sell M2 disconnectors, so they're not worth a lot of money.

Last edited by dfariswheel; 04-01-2014 at 04:44 PM.
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Old 04-01-2014, 04:44 PM   #13
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Unless something in the laws or the ATF's interpretation of them has changed in the last couple decades, dfariswheel is telling the true story as I've always understood it.
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Old 04-01-2014, 07:39 PM   #14
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Hopefully by now you've got the message. If that part is in a gun even if it does not have the trip lever, switch and spring and M-2 slide it still might draw the wrath of the feds.

While it may not be illegal I don't think I'd try to sell it. I'd vote for deep water
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Old 04-02-2014, 06:43 AM   #15
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One question no one has asked yet is how is the carbine that part came out of marked,. Does it say M1 or M2 over the chamber? It should say US 30 cal Carbine M1 right ocer the chamber in front of the bolt.
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Old 04-02-2014, 08:36 AM   #16
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Good point because if it says M-2 it's illegal even if it doesn't have the parts
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Old 04-02-2014, 01:14 PM   #17
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He said it came out of a box of random carbine spare parts, not from some particular gun, as I understand the OP.
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Old 04-02-2014, 04:38 PM   #18
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Bottom line is, since you apparently don't even have a Carbine, there's nothing at all illegal about the trigger group even with a M2 disconnecter in it.
You can give or sell any or all of to anyone legally.
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Old 04-02-2014, 04:40 PM   #19
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Quote:
Originally Posted by dfariswheel View Post
Bottom line is, since you apparently don't even have a Carbine....
He said he had a carbine. Or, at least, did when he was given the box of spare parts.
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Old 04-03-2014, 12:15 PM   #20
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Eons ago, my M1 Carbine had everything but the selector and 9 spring. This was back in the '80's and I pulled them off and chucked them in the river. I even swapped out the M2 slide because it was a little tweaked, and didn't work right anyhow. Put an old first series M1 slide on and she's been perfect ever since. I kept the M2 style magazine catch, that's the only M2 part on my gun with the exception of the trigger housing.
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