AR15 trigger malfunction, firing double+ rnds:)

Mil spec trigger are #### and has no fail safe. Your sear maybe fine but the reset catch probably out of spec and not catching the hammer .

One of my worn out geissele trigger does pull and release firing.cuz the hammer catch worn down . Kinda awesome and I don't think I'll send it back for warranty.
 
Mil spec trigger are #### and has no fail safe. Your sear maybe fine but the reset catch probably out of spec and not catching the hammer .

One of my worn out geissele trigger does pull and release firing.cuz the hammer catch worn down . Kinda awesome and I don't think I'll send it back for warranty.

Hmmm, not smart bud.
I think you are the kind of guy Deckard is worried about f'ing it up for the rest of us. You post on a public forum that is monitored by RCMP and anti's that you have a rifle that shoots full auto and you think it's funny.
Good thing that nothing you type on the internet can be used against you in a court of law. Thank goodness they can't track you down since you're on the internet and are completely invisible.
 
Pull and release trigger is illegal? They have it on over under shot guns

Also it's a worn out part . I didn't mod it to fire that way. If they want to take it to court find and expert they would tell you the hammer catch worn down from repeated use .
 
Pull and release trigger is illegal? They have it on over under shot guns

Also it's a worn out part . I didn't mod it to fire that way. If they want to take it to court find and expert they would tell you the hammer catch worn down from repeated use .

In an AR it’s extremely illegal. Read cr5’s post again please.
 
Pull and release trigger is illegal? They have it on over under shot guns

Also it's a worn out part . I didn't mod it to fire that way. If they want to take it to court find and expert they would tell you the hammer catch worn down from repeated use .

Yes actually, one round per pull of the trigger, if it fires on the reset I'm pretty sure the RCMP will have a problem with it (especially since they deemed whatever that trigger was called that fired on reset as a prohibited device in Canada)
If it's worn out and MALFUNCTIONING you are legally required to stop shooting it and repair it, just because you didn't modify it doesn't mean it's legal.
It's called maintenance, it's required on all mechanical devices and as the owner you are responsible to ensure your rifle is safe for use.
If you drive your can until the tires are bald and the brakes are metal on metal you will get a ticket and your car will be towed. If you get in an accident and your car is deemed it was unfit for travel on public roads you will face additional charges. Same with your guns, it's your RESPONSIBILITY to maintain it.
You don't just get to shrug your shoulders and say you didn't know and they just say "oh, no problem I guess it wasn't your fault".

You know what you typed and what it sounds like you said (especially if someone who doesn't know much about guns reads it) you're not doing yourself or any of us any favors with posts like that.
 
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Thanks Twan, it’s doing what your saying it should do in step 6,7,8.

But just to clarify step 1 .
I cannot put rifle on safe, unless I charge it first.

And yes , it’s a brand new trigger that came in a complete LPK from Brownells.
And most of the part have been used.

I think it was an issue caused by the incorrect ( shorter spring) being used ??

Here is some clarification:

1. Remove magazine if installed. Pull charging handle to rear. Ensure that the chamber is clear. Release the charging handle and allow the bolt and bolt carrier to close. DO NOT pull trigger. Leave hammer in the cocked position.

2. Place selector lever in SAFE position and pull trigger. Hammer should not fall.

3. Place selector lever in SEMI position and pull trigger. Hammer should fall.

NOTE
For the purpose of the following function check, “SLOW” is defined as 1/4 to 1/2 the normal rate of trigger release.

5. Hold trigger to the rear, charge the weapon, and release the trigger with a slow, smooth motion, without hesitations or stops, until the trigger is fully forward. An audible click should be heard. The hammer should not fall.

5. Repeat SEMI position test five times. The weapon must not malfunction during any of the five tests.

----------

It sounds as though you're saying it is indeed functioning how it should be. The culprit is likely the disconnector and the spring as previously mentioned. It's entirely possible that the trigger or trigger spring could be causing the problems, but the likelihood of that is significantly lower than the disconnector.

For the cost - get a second complete trigger unit from a reputable name. Install it and see if the problems persist. It will give you something to compare against, and at least you'll have spare parts otherwise.

As for your title - on a purely technical basis, the rifle at hand isn't actually going "full-auto". If it was, it should be deliberate and by design - but since there's no way for you to legally own one that does, it isn't actually full-auto, nor does it have the capability to do so. The more correct terminology is "Double-Firing" whereby the rifle is firing twice (or more in your case) with one pull of the trigger. The corrective action is what a few of us have said - the disconnector. There are further preventative maintenance checks if it turns out not to be the disconnector, but once again that is less likely. Maybe change the title of the thread to "experiencing double fires" or whatever else you care to say.
 
Pull and release trigger is illegal? They have it on over under shot guns

Also it's a worn out part . I didn't mod it to fire that way. If they want to take it to court find and expert they would tell you the hammer catch worn down from repeated use .

That is not correct - the few over/under shotguns that have pull/release triggers do not fire with both actions. They only fire when you release the trigger, not BOTH when you pull and release the trigger. Like others have stated, any sort of multiple-action triggers are quite simply illegal. - you should

a) return your Geissele trigger under warranty, it is not functioning how it should by design
b) not post that sh*t and..
c) be prepared for the long-knob-of-the-law if you persist to use it as such.

Additionally - you've just described the exact thing that should be done when a part wears out - if the trigger nose (searing portion) is either broken or worn, the correct preventative maintenance is to replace it. You have an unsafe firearm. Realistically nobody cares about your personal safety with your own firearms... but if your continued use of it as such causes injury to someone else due to malfunction, you're a crappy person.

Start a different thread if you think you can discuss this further - but the OPs original question about malfunctions was valid, and lets not detract from them learning something so that they continue to use their firearms safely, unlike yourself.
 
Thanks again Twan, and yes it is indeed functioning correctly.
I removed the shorter spring and installed the longer one and it did the trick.
 
I would leave it, and have fun with it

You're encouraging someone to break the law, you can be banned from the site for that.
And it's just stupid, full auto can be fun but it's no fun when the gun does it whenever it wants instead of when you're expecting it to.
You also need to understand that if the hammer is following the carrier there is a small chance that there is an out of battery detonation which could ruin your rifle, your hands and your face. The rifle is designed to prevent this but it is a possibility so if it's MALFUNCTIONING you're best course of action legally, for your safety, and for the safety of those standing around you is to repair your rifle and enjoy it the way it was designed to be used.
If you want to go shoot something full auto take a trip to the US and go to a range where you can rent a gun that is designed to shoot full auto.
 
it is firing out of battery which is very dangerous. Change the trigger spring or entire group. Did some backyard mechanic try to sand the disconnector or sear?

Can anyone say KABOOM!
The AR can not fire out of battery by design. It is 100% impossible. AR kabooms are always due to ammunition.

The golden spring is a Colt bolt extractor spring. WTF was this doing in a LPK?

The green spring is the proper disconnector spring, it has a large end, the large end is supposed to go down into the trigger cavity, not up. It's going to be hard to get it all the way down, this is normal, it's supposed to be friction fit into a small round pocket at the bottom of the disconnector slot.

Your friend was having continuous double-taps because the small golden extractor spring has no business being in a LPK and wasn't impairing any holding force to the disconnector, so when the bolt carrier hit forward it was releasing the hammer hook due to insufficient grabbing power and movement.
 
The brass spring is th e same shape as the green spring.
Both are wider on one end.
That’s where the confusion came from:)

Not sure how it got mixed in with the LPK though.
 
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