Technical trigger question for Bert

Ok.

I picked up an ALG Combat Trigger today. It appears to be just a stock AR trigger assembly with a little polishing and some sort of slippery coating on it. The kit consisted of a trigger, a hammer, a disconnector, and the pins and springs for these parts.

Anyhow, I installed the trigger and was a bit surprised by how harsh the reset is when the hammer comes off the disconnector and engages the trigger. It almost feels like the trigger "slaps" your finger. And it is noisy too.

I tried installing it in two different lowers and tried the pins that it came with as well as some KNS anti-rotation pins. The results were the same no matter which lower I put it in or which pins I used.

Is this normal? I've never had an AR trigger act this way.

Thanks.

How does the pull / crispness of it feel otherwise? I have almost pulled the trigger on this exact same one

Disconnector needs to be timed.

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Originally Posted by van7559

How does the pull / crispness of it feel otherwise? I have almost pulled the trigger on this exact same one

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Not too shabby. But not really any better than my Daniel Defense triggers. In fact, my original plan was to put this in one of my "fancier" rifles and put the trigger from that rifle into my current "low budget" build. I ended up putting the trigger I had back into it instead and threw this one into the "low budget" rifle.

My opinion is if you have a rifle (like maybe a DPMS) with a crappy, creepy, gritty pull then this is probably a nice upgrade. If you already have a short, clean, crisp trigger pull then you are probably just wasting your hard earned money.

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Originally Posted by BPTactical

Disconnector needs to be timed.

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That was my guess.

When do you want it? [Coffee]

I

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Originally Posted by ray1970

That was my guess.

When do you want it? [Coffee]

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Call me tomorrow Ray.

But if there's orange stuff on it...............

Not asking for secrets but how does one go about timing a disconnector spring?

You can get a nasty trigger slap if you don't have the Safety Selector Lever in place.

I just mention that because I chased that problem for a while one time.

Have a good day.

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Originally Posted by SAnd

You can get a nasty trigger slap if you don't have the Safety Selector Lever in place.

I just mention that because I chased that problem for a while one time.

Have a good day.

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Thanks for the tip. The safety selector was installed. [Beer]

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Originally Posted by van7559

Not asking for secrets but how does one go about timing a disconnector spring?

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It's not the spring that needs adjustment. It's the fit of the actual disconnector.

Without doing any research, my guess would be it is as simple as removing some material from the bottom front part of it to increase the amount of time it is engaged with the hammer before releasing it onto the trigger.

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Originally Posted by BPTactical

Call me tomorrow Ray.

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Will do.

I might tackle this one myself though. What's the worst thing that could happen? I f**k up a perfectly good disconnector? [Coffee]

(Or really screw up and have the thing go "full auto" [Help])

I just experienced a similar situation in building my second AR. After installing the hammer and moving the hammer back with my thumb, I found that it makes a significant contact with the disconnector 'beak' before continuing back and locked. My first build just barely brushed the 'beak' before locking the hammer back. I did have another new LPK (also from PSA) for spare parts. I swapped out the hammer and now its like the first one...much smoother. The first one must have been misdimensioned?

I'm hoping the lesser contact with the disconnector 'beak' is the proper operation... As now I'm not certain which is the preferable operation/engagement.

You need a touch more engagement than than just brushing the beak. You want to err on the conservative side, you can run into a doubling situation especially if you are trying to feather the trigger.
With the trigger depressed you want AT LEAST a 1/16" and preferably a decent bit more disconnector engagement.

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Originally Posted by BPTactical

You need a touch more engagement than than just brushing the beak. You want to err on the conservative side, you can run into a doubling situation especially if you are trying to feather the trigger.
With the trigger depressed you want AT LEAST a 1/16" and preferably a decent bit more disconnector engagement.

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Thanks kind sir...after reading your quick response I just compared my two builds with a factory Bushmaster and they seem identical.
If I have any further doubts I'll probably make an appointment with you and bring them up there for you to evaluate.

Thanks again,

Quote:

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Originally Posted by BPTactical

You need a touch more engagement than than just brushing the beak. You want to err on the conservative side, you can run into a doubling situation especially if you are trying to feather the trigger.
With the trigger depressed you want AT LEAST a 1/16" and preferably a decent bit more disconnector engagement.

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And doubling ain't no fun on a Big Bore AR..........[LOL] (Private joke, Bert Knows the meaning.)

Quote:

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Originally Posted by BPTactical

You need a touch more engagement than than just brushing the beak. You want to err on the conservative side, you can run into a doubling situation especially if you are trying to feather the trigger.
With the trigger depressed you want AT LEAST a 1/16" and preferably a decent bit more disconnector engagement.

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Finally got a replacement hammer for the bad one from PSA...they didn't want the original one.
The below pics show the bad, original, one on the left, and new PSA one on the right. (one on the right has some small squares with an "S" in them)Attachment 45213Attachment 45215

What kind of a mess is the one on the left? Can you post a side shot?

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Originally Posted by BPTactical

What kind of a mess is the one on the left? Can you post a side shot?

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You did not get the memo? That is the UWE hammer with ultra wide engagement surfaces. For the true "operator" to keep on going when his pins fall out. [LOL]

Looks like a bad casting to me. China is not known for QC. [Flower]

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Originally Posted by BPTactical

What kind of a mess is the one on the left? Can you post a side shot?

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Again, the one of the left is 'creative'... ;->Attachment 45237

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Originally Posted by jerrymrc

You did not get the memo? That is the UWE hammer with ultra wide engagement surfaces. For the true "operator" to keep on going when his pins fall out. [LOL]

Looks like a bad casting to me. China is not known for QC. [Flower]

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I forgot, that's the "Tier One" model.
Muzzies fear it's presence and women spontaneously orgasm at its mention.....