User Panel
User Panel
User Panel
|
Posted: 4/6/2014 2:08:25 PM EDT
So at the range I lets this other guy shoot my AR and it was doubling for him as it was for myself and my wife. It's a factory Daniel Defense lower, and this is not the first time it happened, but when I contacted DD a long time ago they told me it was accidental bump fire. I believed them since it has not happened till now.
When I got home I checked the FCG and it looks good, and thought to myself if I could make this trigger sort of "double" when I dry fire. So when I pull the trigger and slowly reset the trigger as if shooting for groups it releases the hammer 5 out 5 times, but if I quickly remove my finger the trigger resets fine and the hammer is not released. My wife also did this lil test with the same results. I have not done anything to my DD lower, and it has around 5k rounds in 3 years. ETA: Again mine only doubles when I slowly reset the trigger, and when I shot the other guys gun I tried to slowly reset his trigger but had no issues like mine. ETA 4/22/14: I took my FCG out and stripped it then re assembled and still had the issue so I just bought a Geissele and now its done. I might give DD a ring and see if they want to look at it. thanks for all the replies Some photos   I am not trying to pull the trigger in the video, but just slowly resetting it.  |
|
|
|
Posted: 4/6/2014 2:43:52 PM EDT
[#1]
I'm not see what you mean by doubling, do you mean that it is firing two rounds in rapid succession? At which point i would check the catch sear, if it is worn that may cause the problem, but i am unsure. I would also check the end of your firing pin, it maybe possible that it is slam firing if the pin has something extending the tip of it.
|
|
|
|
Posted: 4/6/2014 2:57:25 PM EDT
[#2]
Quote HistoryQuoted: I'm not see what you mean by doubling, do you mean that it is firing two rounds in rapid succession? At which point i would check the catch sear, if it is worn that may cause the problem, but i am unsure. I would also check the end of your firing pin, it maybe possible that it is slam firing if the pin has something extending the tip of it. I just know that when I slowly reset the trigger the gun goes off without me actually wanting to pull the trigger, but when I let my finger off the trigger it resets and does not fire if that makes sense. Firing pin and BCG is all gtg as well. |
|
|
|
Posted: 4/6/2014 4:08:55 PM EDT
[#3]
You just have a really light trigger pull. I had one of those BIll Springfield trigger jobs that would do that.
|
|
|
|
Posted: 4/6/2014 4:11:52 PM EDT
[#4]
Quote HistoryQuoted: You just have a really light trigger pull. I had one of those BIll Springfield trigger jobs that would do that. ETA: I have shot Geissele's and other light triggers that did not have this issue.
|
|
|
|
Posted: 4/6/2014 4:18:54 PM EDT
[#5]
Didn't hear the disconnector click at all. Does it have the spring installed?
|
|
|
|
Posted: 4/6/2014 4:20:58 PM EDT
[#6]
Let's see how good my memory is. The disconnect keeps the hammer from falling while the trigger is still held back. On your video the hammer is clearly falling when you release the trigger, so my bet is the disconnect is doing it's job. To be sure pull the trigger and hold it back. Pull back the charging again and see if the hammer follows the bolt. (keeping the trigger back the whole time). If the hammer doesn't release until you let go of the trigger you probably have a worn sear area on the trigger or hammer, I have seen this happen to guys that got a little crazy with stoning the triggers and just a bad trigger on even a new gun.
|
|
|
|
Posted: 4/6/2014 4:22:15 PM EDT
[#7]
I would just replace the FCG asap. i'd say somethings up with the disconnector and or sear geometry.
|
|
|
|
Posted: 4/6/2014 4:23:07 PM EDT
[#8]
Quote HistoryQuoted: Didn't hear the disconnector click at all. Does it have the spring installed? |
|
|
|
Posted: 4/6/2014 4:24:47 PM EDT
[#9]
Quote HistoryQuoted: Let's see how good my memory is. The disconnect keeps the hammer from falling while the trigger is still held back. On your video the hammer is clearly falling when you release the trigger, so my bet is the disconnect is doing it's job. To be sure pull the trigger and hold it back. Pull back the charging again and see if the hammer follows the bolt. (keeping the trigger back the whole time). If the hammer doesn't release until you let go of the trigger you probably have a worn sear area on the trigger or hammer, I have seen this happen to guys that got a little crazy with stoning the triggers and just a bad trigger on even a new gun. |
|
|
|
Posted: 4/6/2014 4:25:21 PM EDT
[#10]
Quote HistoryQuoted: I would just replace the FCG asap. i'd say somethings up with the disconnector and or sear geometry. |
|
|
|
Posted: 4/6/2014 4:26:30 PM EDT
[#11]
The disconnecter spring could be upside down.
|
|
|
|
Posted: 4/6/2014 4:30:07 PM EDT
[#12]
Quote HistoryQuoted:
I would just replace the FCG asap. i'd say somethings up with the disconnector and or sear geometry. This. A FCG is way too inexpensive and easy to swap out..then to otherwise dick around spending time trying to diagnosis whats exactly up. I had an AR double fire yrs ago. Swapped out the FCG asap and hasn't done it since. |
|
|
|
Posted: 4/6/2014 4:31:34 PM EDT
[#13]
Quote HistoryQuoted: This. A FCG is way too inexpensive and easy to swap out..then to otherwise dick around spending time trying to diagnosis whats exactly up. I had an AR double fire yrs ago. Swapped out the FCG asap and hasn't done it since. Quote HistoryQuoted: Quoted: I would just replace the FCG asap. i'd say somethings up with the disconnector and or sear geometry. This. A FCG is way too inexpensive and easy to swap out..then to otherwise dick around spending time trying to diagnosis whats exactly up. I had an AR double fire yrs ago. Swapped out the FCG asap and hasn't done it since. Will replace FCG asap.
|
|
|
|
Posted: 4/6/2014 4:34:44 PM EDT
[#14]
I'd install a ALG ACT trigger........
|
|
|
|
Posted: 4/6/2014 4:35:56 PM EDT
[#15]
Quote HistoryQuoted:
Not trying to dick around, but just want to know why its doing this. Will replace FCG asap. Hard to tell,.......could be wear on the disco or spring. |
|
|
|
Posted: 4/6/2014 4:39:10 PM EDT
[#16]
Quote HistoryQuoted: Hard to tell,.......could be wear on the disco or spring. Quote HistoryQuoted: Quoted: Not trying to dick around, but just want to know why its doing this. Will replace FCG asap. Hard to tell,.......could be wear on the disco or spring. |
|
|
|
Posted: 4/6/2014 4:40:00 PM EDT
[#17]
Quote HistoryQuoted: I'd install a ALG ACT trigger........ |
|
|
|
Posted: 4/6/2014 4:43:30 PM EDT
[#18]
Quote HistoryQuoted:
But there is something up though correct? Quote HistoryQuoted:
Quoted:
Quoted:
Not trying to dick around, but just want to know why its doing this. Will replace FCG asap. Hard to tell,.......could be wear on the disco or spring. Well yes of course there is "something up". The fix is to r&r the components. If you really just must know the individual fail point, then swap one part at a time. Odds are it's a spring or a miss-cut dissconnector/sear. |
|
|
|
Posted: 4/6/2014 4:45:05 PM EDT
[#19]
It sounds like your disconnect is doing it's job or it would let the hammer fall when you re cocked. A rifle that fires when you don't intend it to is clearly not wanted. So yes you have your wish for a good excuse to upgrade the trigger group. I would replace all the parts while you were at just for the piece of mind knowing it is all new and good for a few thousand rounds. Most after market ones come complete anyway.
|
|
|
|
Posted: 4/6/2014 4:47:04 PM EDT
[#20]
Quote HistoryQuoted: Well yes of course there is "something up". The fix is to r&r the components. If you really just must know the individual fail point, then swap one part at a time. Odds are it's a spring or a miss-cut dissconnector/sear. Quote HistoryQuoted: Quoted: Quoted: Quoted: Not trying to dick around, but just want to know why its doing this. Will replace FCG asap. Hard to tell,.......could be wear on the disco or spring. Well yes of course there is "something up". The fix is to r&r the components. If you really just must know the individual fail point, then swap one part at a time. Odds are it's a spring or a miss-cut dissconnector/sear. thanks for the info.
|
|
|
|
Posted: 4/6/2014 4:48:25 PM EDT
[#21]
Stupid question, maybe - but have you tried the "South Park fix?"
Just yank the whole thing, disassemble it completely, reassemble, making sure to do it correctly, and see if it keeps doing it? ...sometimes you just need to unplug the damn thing and plug it back in... If you have and/or if you do, and it still happens, I'd just replace the FCG and call it good. Not worth fiddling with, IMHO. ~Augee |
|
|
|
Posted: 4/6/2014 4:51:25 PM EDT
[#22]
Quote HistoryQuoted: Stupid question, maybe - but have you tried the "South Park fix?" Just yank the whole thing, disassemble it completely, reassemble, making sure to do it correctly, and see if it keeps doing it? ...sometimes you just need to unplug the damn thing and plug it back in... If you have and/or if you do, and it still happens, I'd just replace the FCG and call it good. Not worth fiddling with, IMHO. ~Augee I'll try it when I get off work tomorrow thnks |
|
|
|
Posted: 4/7/2014 1:05:25 AM EDT
[#23]
Based on the video I would inspect the sear at the bottom of the hammer where it engages the trigger. Separate the upper from the lower. Pull and hold the trigger back, followed by pushing the hammer down to where the disconnector grabs the hammer. While continuing to hold the trigger, and protecting the lower with your other hand to not cause the hammer to strike the lower around the bolt catch, slowly release the trigger to see what the sear at the bottom of the hammer is doing, and also what the disconnector is doing. I'm thinking either the trigger isn't engaging the sear at the bottom of the hammer, or the disconnector is binding up the hammer. This would seem to make sense being when you release the trigger rather quickly the trigger engages the hammer.
|
|
|
|
Posted: 4/7/2014 1:14:47 AM EDT
[#24]
Quote HistoryQuoted:
The disconnecter spring could be upside down. |
|
|
|
Posted: 4/22/2014 12:31:44 PM EDT
[#25]
Replaced it with a Geissele SSA after 3 long years.
|
|
|
|
Posted: 4/22/2014 1:17:40 PM EDT
[#26]
Quote HistoryQuoted:
Didn't hear the disconnector click at all. Does it have the spring installed? this is the million dollar question. |
|
|
|
Posted: 4/22/2014 1:21:23 PM EDT
[#27]
Quote HistoryQuoted: this is the million dollar question. Quote HistoryQuoted: Quoted: Didn't hear the disconnector click at all. Does it have the spring installed? this is the million dollar question. |
|
|
|
Posted: 4/22/2014 1:32:41 PM EDT
[#28]
Quote HistoryQuoted: Quote HistoryQuoted: Quoted: The disconnecter spring could be upside down. |
|
|
|
Posted: 4/22/2014 7:59:43 PM EDT
[#29]
Quote HistoryQuoted:
Replaced it with a Geissele SSA after 3 long years. Wasted money, shoulda gone with ALG as suggested |
|
|
|
Posted: 4/22/2014 9:16:38 PM EDT
[#30]
I had an ALG defense Quality Mil-spec fcg in my first build and after about 200 rounds the doubling/rapid fire started to occur.
It would happen after the reset. It happened a few times before I realized what was going on. Pull the trigger, bang, let it reset then bang bang bang. (Jaw dropped, then laughter and smiles followed  )
I called ALG, they sent me a new one. I sold it and got a Geissele SSA. End of problems. |
|
|
|
Posted: 4/23/2014 2:07:51 AM EDT
[#31]
Quote HistoryQuoted: Wasted money, shoulda gone with ALG as suggested Quote HistoryQuoted: Quoted: Replaced it with a Geissele SSA after 3 long years. Wasted money, shoulda gone with ALG as suggested   |
|
|
|
Posted: 4/23/2014 2:08:27 AM EDT
[#32]
Quote HistoryQuoted: I had an ALG defense Quality Mil-spec fcg in my first build and after about 200 rounds the doubling/rapid fire started to occur. It would happen after the reset. It happened a few times before I realized what was going on. Pull the trigger, bang, let it reset then bang bang bang. (Jaw dropped, then laughter and smiles followed )I called ALG, they sent me a new one. I sold it and got a Geissele SSA. End of problems. |
|
|
|
Posted: 4/23/2014 3:37:43 AM EDT
[#33]
Quote HistoryQuoted:
But there is something up though correct? Quote HistoryQuoted:
Quoted:
Quoted:
Not trying to dick around, but just want to know why its doing this. Will replace FCG asap. Hard to tell,.......could be wear on the disco or spring. Maybe its just the angle of your pic but it looks to me that your Disconnect seems to be leaning hard right to me. Is there enough tension on it or is the Disconnect spring unsettled? Either way there is something going on with it from what your describing. I too like to find out exactly what is causing something rather than just simply replacing the whole FCG at once, just for my own knowledge bank... |
|
|
|
Posted: 4/23/2014 3:58:49 AM EDT
[#34]
Quote HistoryQuoted: Maybe its just the angle of your pic but it looks to me that your Disconnect seems to be leaning hard right to me. Is there enough tension on it or is the Disconnect spring unsettled? Either way there is something going on with it from what your describing. I too like to find out exactly what is causing something rather than just simply replacing the whole FCG at once, just for my own knowledge bank... Quote HistoryQuoted: Quoted: Quoted: Quoted: Not trying to dick around, but just want to know why its doing this. Will replace FCG asap. Hard to tell,.......could be wear on the disco or spring. Maybe its just the angle of your pic but it looks to me that your Disconnect seems to be leaning hard right to me. Is there enough tension on it or is the Disconnect spring unsettled? Either way there is something going on with it from what your describing. I too like to find out exactly what is causing something rather than just simply replacing the whole FCG at once, just for my own knowledge bank... I'll probably just send it in to DD and have them tell me what went wrong.
|
|
|
|
Posted: 5/1/2014 2:19:15 PM EDT
[#35]
I have a dd lpk. Curious to find out what was wrong. Let us know if you send it in.
|
|
|
|
Posted: 5/1/2014 2:26:21 PM EDT
[#36]
Quote HistoryQuoted:
Replaced it with a Geissele SSA after 3 long years. Haha nice... thats what i came to post: Swap that bitch out. Very nice ETA: this thread is pretty old.. missed that one |
|
|
Win a FREE Membership!
Sign up for the ARFCOM weekly newsletter and be entered to win a free ARFCOM membership. One new winner* is announced every week!
You will receive an email every Friday morning featuring the latest chatter from the hottest topics, breaking news surrounding legislation, as well as exclusive deals only available to ARFCOM email subscribers.
AR15.COM is the world's largest firearm community and is a gathering place for firearm enthusiasts of all types.
From hunters and military members, to competition shooters and general firearm enthusiasts, we welcome anyone who values and respects the way of the firearm.
Subscribe to our monthly Newsletter to receive firearm news, product discounts from your favorite Industry Partners, and more.
Copyright © 1996-2024 AR15.COM LLC. All Rights Reserved.
Any use of this content without express written consent is prohibited.
AR15.Com reserves the right to overwrite or replace any affiliate, commercial, or monetizable links, posted by users, with our own.
