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7/18/2026 11:52:42 PM EDT
So today I tried for the first time just semi auto in my m16a2 clone and I can pull the trigger 3 times on the 4th Ive got a dead trigger. I can slightly and I mean slightly push the trigger forward and the disconnect will click and or push the trigger from the side and it do the same.  

7/19/2026 3:23:36 AM EDT
[#1]
Originally Posted By country_boy87:
So today I tried for the first time just semi auto in my m16a2 clone and I can pull the trigger 3 times on the 4th Ive got a dead trigger. I can slightly and I mean slightly push the trigger forward and the disconnect will click and or push the trigger from the side and it do the same.  

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It sounds like something is hanging up on the burst mechanism when it is supposed to be in "semi". The 3 round burst works properly in the 3rd position?
7/19/2026 7:16:55 AM EDT
[Last Edit: ELittlefield][Edited] [#2]
One of my CARLs was finicky until I stoned off the "flashing" from the disconnectors. Not sure if that's exactly the right term, but the slightly sharp lip left over from the stamping process can cause them to hang up a bit.

Secondly, you should do the "flick" thing about a hundred times, where you press down on the hammer with your thumb, and let your thumb slide off so the hammer flicks back forward, in order to make sure your disconnector isn't catching in that space between full depression and caught by the sear.

Beyond that, your cam might be sticky. Throw some lube around it, work it in, and keep dry firing it until it dry fires correctly 50 times in a row.
It was not preached to the crowd,
It was not taught by the State.
No man spoke it aloud,
When the English began to hate.
7/19/2026 5:10:56 PM EDT
[#3]
Check to insure trigger return spring is installed correctly.

shithappens
Preferred pronoun: MARINE
7/19/2026 10:17:43 PM EDT
[#4]
Quote History
Originally Posted By GhostITM:


It sounds like something is hanging up on the burst mechanism when it is supposed to be in "semi". The 3 round burst works properly in the 3rd position?
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Yes the two are independent.
7/19/2026 11:39:38 PM EDT
[#5]
Quote History
Originally Posted By ELittlefield:
One of my CARLs was finicky until I stoned off the "flashing" from the disconnectors. Not sure if that's exactly the right term, but the slightly sharp lip left over from the stamping process can cause them to hang up a bit.

Secondly, you should do the "flick" thing about a hundred times, where you press down on the hammer with your thumb, and let your thumb slide off so the hammer flicks back forward, in order to make sure your disconnector isn't catching in that space between full depression and caught by the sear.

Beyond that, your cam might be sticky. Throw some lube around it, work it in, and keep dry firing it until it dry fires correctly 50 times in a row.
View Quote


This worked for me as well. I also took some 2k grit sandpaper and polished up the cam

Stolen Firearm: Colt AR15, Serial # SP342380, 16" carbine. Stolen in California by Kevin Ayres, and taken to Missouri.
7/20/2026 12:44:56 AM EDT
[#6]
Quote History
Originally Posted By country_boy87:



Yes the two are independent.
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Quote History
Originally Posted By country_boy87:
Originally Posted By GhostITM:


It sounds like something is hanging up on the burst mechanism when it is supposed to be in "semi". The 3 round burst works properly in the 3rd position?



Yes the two are independent.


I understand that, but you did not make it clear if it was functioning correctly in the 3rd position.

As Elittlefield stated I would try that. Usually its the opposite, semi works and the 3 round does not.

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