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5/30/2013 12:11:26 PM EDT
Installing a ALG trigger system on a Seekins 223 lower.  I cannot get the trigger to release the hammer.
5/30/2013 12:18:50 PM EDT
[#1]
That's the Joe Biden Safety Trigger.

Sorry, couldn't resist.  


I haven't used one of those, so I can't help.
5/30/2013 12:24:42 PM EDT
[#2]
Is the safety selector in the "fire" position?
Seriously though, can you give a little more info and/or pictures?
5/30/2013 12:39:01 PM EDT
[#3]
Quoted:
Is the safety selector in the "fire" position?
Seriously though, can you give a little more info and/or pictures?


Selector in SAFE position was my first thought.  I have installed a bunch of those lately and haven't had any issues with any of them.
5/30/2013 12:50:39 PM EDT
[#4]
hahaha sorry guys! OK this is my first build so NOOB all the way.  I started with the trigger assembly, the safety and fire selection switch is NOT installed yet...that the cause?!
5/30/2013 1:11:22 PM EDT
[#6]
Quoted:
hahaha sorry guys! OK this is my first build so NOOB all the way.  I started with the trigger assembly, the safety and fire selection switch is NOT installed yet...that the cause?!


No, if the selector switch isn't even there, then that's not the issue.  Have you double checked your spring positions?

EDIT: Ok, now I see your pics...
5/30/2013 1:12:31 PM EDT
[#7]
Where's your hammer?
5/30/2013 1:26:38 PM EDT
[#9]
disconnector spring?? I don't see it installed.

Taken from another forum:
5/30/2013 1:34:48 PM EDT
[#10]
Its there..u just cant see it in the picture.
5/30/2013 1:54:43 PM EDT
[#11]
You need to install the safety lever first. It won't fit if you install the trigger group first.
5/30/2013 2:26:50 PM EDT
[#12]



Quoted:


You need to install the safety lever first. It won't fit if you install the trigger group first.


Yes it will.  Cock the hammer and the safety will slide right in.

 
5/30/2013 2:33:50 PM EDT
[#13]
Quoted:

Quoted:
You need to install the safety lever first. It won't fit if you install the trigger group first.

Yes it will.  Cock the hammer and the safety will slide right in.  


This^^^^^
5/30/2013 3:23:33 PM EDT
[#14]
I have checked every video and install guide, when I pull back on the trigger the hammer will just not release.  This isnt exactly rocket science....cant figure out whats going on.
5/30/2013 3:41:30 PM EDT
[#15]
Okay stop trying to pull from the trigger, take a thin flat blade and pry the back of the trigger / disconnector towards the front of the receiver and see if it strikes.
5/30/2013 3:44:13 PM EDT
[#16]
I am talking about with the hammer back in the cocked position too.
5/30/2013 3:44:43 PM EDT
[#17]
When you pull the trigger, does it move at all?  As you cock the hammer, can you see the trigger bar move down then click into the sear?

Assuming you can cock the hammer, then the trigger bar must be able to move far enough to disengage the sear.  I'm also hoping that you're holding the hammer while you pull the trigger to keep it from smacking into the bolt release or divider -- that can easily cause damage to the lower.

ETA: In your second pic it looks like the hammer is a bit farther cocked than normal.  Are you sure that it's not catching on the disconnector and never resetting?
5/30/2013 3:55:39 PM EDT
[#18]
Quoted:
ETA: In your second pic it looks like the hammer is a bit farther cocked than normal.  Are you sure that it's not catching on the disconnector and never resetting?


This. If you look flush across the top of the receiver you should see light between the top of the receiver and backend of the hammer.

5/30/2013 4:26:46 PM EDT
[#19]
I bought a ALG (act) trigger last week and installed it on a PSA lower. I used the Brownells  videos on how to build a lower and the trigger works fine. Hope you can resolve the issue maybe check out the video and rebuild it and see if you missed something. good luck!
5/30/2013 4:36:40 PM EDT
[#20]
I have had a trigger that required installing the selector first and then sliding the trigger in afterwards. I know it is not supposed to work that way but in this particular instance it was the only way I could get the trigger and selector into the same lower. FYI, it was a Geissele SD-E and a BAD-ASS-ST in a Noveske Gen 2 lower.
5/30/2013 4:44:53 PM EDT
[#21]
If you have a spare FCG use it and see if you have the same issues...if you have the same issues then it have
the hammer/trigger holes out of spec. on your lower (although this is rather unlikely)...It is more likely that the
engagement surfaces are a little to long on one or both area's of you FCG parts...
5/30/2013 4:46:23 PM EDT
[#22]
It's a pretty east fix. Seekins lowers have a screw to take the slack of triggers in them.

Here's the inside shot of it-



Outside shot- small Allen screw next to grip screw hole



Back the screw out and your problem will be fixed.
5/30/2013 4:57:56 PM EDT
[#23]
Quoted:
It's a pretty east fix. Seekins lowers have a screw to take the slack of triggers in them.

Here's the inside shot of it-

http://i300.photobucket.com/albums/nn38/rccox/null-9.jpg

Outside shot- small Allen screw next to grip screw hole

http://i300.photobucket.com/albums/nn38/rccox/null-10.jpg

Back the screw out and your problem will be fixed.




Totally forgot about the adjustment screws...

5/30/2013 5:35:55 PM EDT
[#24]
Quoted:
It's a pretty east fix. Seekins lowers have a screw to take the slack of triggers in them.

Here's the inside shot of it-

http://i300.photobucket.com/albums/nn38/rccox/null-9.jpg

Outside shot- small Allen screw next to grip screw hole

http://i300.photobucket.com/albums/nn38/rccox/null-10.jpg

Back the screw out and your problem will be fixed.


Wouldn't that screw limit the take-up and not the over-travel?  I could see that screw causing the hammer to never engage the sear rather than never disengaging (firing).  I've never used a Seekins lower, so I'm just guessing based on the adjustments on my JP Enterprises triggers.
5/30/2013 5:38:11 PM EDT
[#25]
Quoted:
Quoted:
It's a pretty east fix. Seekins lowers have a screw to take the slack of triggers in them.

Here's the inside shot of it-

http://i300.photobucket.com/albums/nn38/rccox/null-9.jpg

Outside shot- small Allen screw next to grip screw hole

http://i300.photobucket.com/albums/nn38/rccox/null-10.jpg

Back the screw out and your problem will be fixed.


Wouldn't that screw limit the take-up and not the over-travel?  I could see that screw causing the hammer to never engage the sear rather than never disengaging (firing).  I've never used a Seekins lower, so I'm just guessing based on the adjustments on my JP Enterprises triggers.


If the screw is ran too far in it will prevent the trigger from being pulled.

I guess to be more technical if the screw is screwed in too far it causes the rear of the trigger to tilt up and will not let the disconnector release.

Not the best pic but I have a Seekins lower on my bench and I simulated running the screw too far in-



5/30/2013 6:12:36 PM EDT
[#26]
Quoted:
Quoted:
Quoted:
It's a pretty east fix. Seekins lowers have a screw to take the slack of triggers in them.

Here's the inside shot of it-

http://i300.photobucket.com/albums/nn38/rccox/null-9.jpg

Outside shot- small Allen screw next to grip screw hole

http://i300.photobucket.com/albums/nn38/rccox/null-10.jpg

Back the screw out and your problem will be fixed.


Wouldn't that screw limit the take-up and not the over-travel?  I could see that screw causing the hammer to never engage the sear rather than never disengaging (firing).  I've never used a Seekins lower, so I'm just guessing based on the adjustments on my JP Enterprises triggers.


If the screw is ran too far in it will prevent the trigger from being pulled.

I guess to be more technical if the screw is screwed in too far it causes the rear of the trigger to tilt up and will not let the disconnector release.

Not the best pic but I have a Seekins lower on my bench and I simulated running the screw too far in-

http://i300.photobucket.com/albums/nn38/rccox/null-12.jpg



AAHHH!!!  I see now.  It is much like the adjustments on the JP.  If tilting the trigger bar forward causes the disconnector to engage before the sear disengages, then I can see how OP's symptoms would happen.
5/31/2013 11:34:25 AM EDT
[#27]
Issue resolved.
6/1/2013 5:00:32 AM EDT
[#28]
Quoted:
It's a pretty east fix. Seekins lowers have a screw to take the slack of triggers in them.

Here's the inside shot of it-

http://i300.photobucket.com/albums/nn38/rccox/null-9.jpg

Outside shot- small Allen screw next to grip screw hole

http://i300.photobucket.com/albums/nn38/rccox/null-10.jpg

Back the screw out and your problem will be fixed.


What is the set screw on the left of the pistol grip boss and to the rear of the selector detent /  spring hole for ?
6/1/2013 6:08:01 AM EDT
[#29]
Its for the detent spring for the rear takedown pin.  Seekins relocated it on their billet lower, if I'm lookin at the same one you're thinking of that is.
6/2/2013 7:11:33 AM EDT
[#30]
Quoted:
Its for the detent spring for the rear takedown pin.  Seekins relocated it on their billet lower, if I'm lookin at the same one you're thinking of that is.


Well, that's actually a worthwhile improvement !
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