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10/15/2013 8:10:16 AM EDT
I have read posts that provide detailed instructions on how to do a "trigger job".  Just a bit of warning, do not "tinker" with doing gun modifications if you are not qualified, trained and certified to do so.  The results if you screw it up could be disastrous.  I recently purchased a Spikes AR in 6.8 SPC.  While at my range, I found the rifle fired what I thought was a two shot burst.  After taking a closer look at the cycle of operation, it was determined the rifle fires one round when the trigger is pulled and a second round when the trigger is released.  As a result I took the trigger assembly apart.  It is not difficult to see the poor attempt to modify these parts.  I can only assume it was done to remove creep or smooth the trigger pull.   The disconnector was modified and now includes angles I have never seen.  The hammer and sear also look like they have been on a grinding wheel.  Remember these parts are soft.  It doesn't take much to make them inoperable.  As a result, the trigger group will need to be replaced.  Thank you for reading.  Be Safe!!!

I would have post pictures but have not figured out how to do this yet.  I am not very computer savy. Any assistance appreciated.
10/15/2013 9:06:33 AM EDT
[#1]
Or.... The parts were modified to intentionally fire this way. Illegal? Yes. Does it still happen? Yes. It is not difficult to modify a fire control group. You certainly to not need a "certification" to do so.
10/15/2013 10:16:12 AM EDT
[#2]
Certification does not grant knowledge. Your ether a dumbass or not a dumbass.
10/15/2013 10:23:02 AM EDT
[#3]
re: POSTING PHOTOS

You can not upload photos directly to AR15.com.   You post the photos somewhere else, and then copy the URL of their location and paste that URL into your message.

You'll need to open a hosting account somewhere like PHOTOBUCKET (free), and then  upload the image to the hosting account.  Then once uploaded, take the URL from the image in the hosting account and paste that URL into your REPLY by clicking the ADD IMAGE icon in the INSERT TAGS section of your REPLY, and pasting the URL there.   The image will then show up in your posts.

Or-

You could read this:

http://www.ar15.com/archive/topic.html?b=1&f=5&t=876558

ETA:  Welcome to arfcom
10/15/2013 11:44:39 AM EDT
[#4]
Quoted:
Remember these parts are soft.  .
View Quote


No they are not, and in fact, dam near hard as a rock that a standard file will not even scratch them.

Its when the surfaces are either stoned/polished past the surface case hardening, or someone grinds on them and ends up annealing the parts due to too much heat created , that they become soft instead.
10/15/2013 5:23:35 PM EDT
[#5]
The stock FCG is not expensive, less than 2 mags worth of ammo.  And should be in your spare parts box already.

10/17/2013 3:36:05 PM EDT
[#6]
Quoted:
I have read posts that provide detailed instructions on how to do a "trigger job".  Just a bit of warning, do not "tinker" with doing gun modifications if you are not qualified, trained and certified to do so.  The results if you screw it up could be disastrous.  I recently purchased a Spikes AR in 6.8 SPC.  While at my range, I found the rifle fired what I thought was a two shot burst.  After taking a closer look at the cycle of operation, it was determined the rifle fires one round when the trigger is pulled and a second round when the trigger is released.  As a result I took the trigger assembly apart.  It is not difficult to see the poor attempt to modify these parts.  I can only assume it was done to remove creep or smooth the trigger pull.   The disconnector was modified and now includes angles I have never seen.  The hammer and sear also look like they have been on a grinding wheel.  Remember these parts are soft.  It doesn't take much to make them inoperable.  As a result, the trigger group will need to be replaced.  Thank you for reading.  Be Safe!!!

I would have post pictures but have not figured out how to do this yet.  I am not very computer savy. Any assistance appreciated.
View Quote



I call BS troll post.   OP claims to understand the inner workings of an AR, yet fails to function test or inspect parts before firing, claims consistent regular and reverse trigger hammer strikes, and somehow has a golden rifle that shoots both which if is true would probably not even need a tax stamp.  OP is also calling out a reputable brand of AR gun/parts maker and does not specify if the firearm is used or new.   BTW reverse/release trigger does exist, but it is only some shotguns  and a clay shooting gimmick for newbies imo .  

If this is not a BS troll post then here is the universal procedure to function test almost any semi-automatic firearm:

1- make the firearm safe. #2 is a subset of #1
2- point the firearm in a safe direction
3- see #1
4- see #2
5- charge the weapon
6- place the selector on "safe" if it has that function
7- at no point up till now should your finger be on the trigger or within the trigger guard. pull the trigger

If the firearm did not "fire" you can now proceed

8- place the firearm on fire and pull the trigger again

If the firearm did "fire" you can now proceed

9-  pull and hold the trigger back
10- while keeping the trigger pulled, charge the firearm
11- release and let the trigger reset and take note of what happens

If you heard/felt/observed a nice clean pop (not a hammer fall) you should be good to go unless you actually do have issues.  


Another universal thing to never do with semiautomatics is to ride the bolt forward.  Generally not an issue with ARs or most modern firearms, but it is not a good practice and can cause a dangerous condition in some normally perfectly safe milsurp guns.



10/17/2013 3:52:18 PM EDT
[#7]
Other option, is that previous owner modded the trigger group to fire on pull, and on release of teh trigger.  Perfectly legal.  May not be the brightest or safest idea, but still a legal one.
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