AR double taps
- Thread starter OLD RSM
- Start date
function test the gun,
take apart the lower from the upper, and test the trigger reset
try to make sure you catch the hammer in a gloved or clothed hand so it doesnt impact unnecessarily
pull the trigger all the way, and HOLD it all the way.
while still holding the trigger all the way down, pull the hammer back till it locks.
now release the trigger, it should click just a little bit
do this a few times, if the hammer drops any time after you let go of the trigger, you are firing on reset,
other wise could be bump fire, slam fire, or a few other things
take apart the lower from the upper, and test the trigger reset
try to make sure you catch the hammer in a gloved or clothed hand so it doesnt impact unnecessarily
pull the trigger all the way, and HOLD it all the way.
while still holding the trigger all the way down, pull the hammer back till it locks.
now release the trigger, it should click just a little bit
do this a few times, if the hammer drops any time after you let go of the trigger, you are firing on reset,
other wise could be bump fire, slam fire, or a few other things
Could be:
disconnect worn
hammer upper inner notch worn
Disconnect spring missing, weak or broken
hammer and trigger pins worn
hammer and trigger pin holes worn
Try this:
Open the upper receiver
#### the hammer while holding the trigger to the rear;
slowly force the selector from semi to safe while holding the trigger;
If the hammer clicks onto the disconnect, it's probably good. If it fires the hammer all the way up, it will double.
Change the disconnect and repeat. Keep doing this until you figure out which part is out of spec.
disconnect worn
hammer upper inner notch worn
Disconnect spring missing, weak or broken
hammer and trigger pins worn
hammer and trigger pin holes worn
Try this:
Open the upper receiver
#### the hammer while holding the trigger to the rear;
slowly force the selector from semi to safe while holding the trigger;
If the hammer clicks onto the disconnect, it's probably good. If it fires the hammer all the way up, it will double.
Change the disconnect and repeat. Keep doing this until you figure out which part is out of spec.
- Location
- East ontario
makes sure your trigger and hammer springs are in corect, common mistake if not.
what make is your LPK.
what make is your LPK.
$100 dollar Lower Parts Kit would most likely solve any issues with double shot. the upper has no way to cause this issue that i know of. worn disconnect/hammer connection or missing weak disconnect spring makes sense to me. could also be an out of spec disconnect or trigger. clear pictures of all your components taken at close up of the mating surfaces would help figure it out.
350 rounds? Wow that sucks... Yea that's the benefit of getting them from a quality manufacturer, pay a bit more.... But last longer
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There's your problem.
If those guys are who I think they are (formerly Hesse), they've changed names multiple times over the years because their poorly-built lowers suffer catastrophic failures like cracking behind the pistol grip and in front of the receiver extension, etc. I've never seen a company with such a terrible reputation. You think all the crap about NEA on here is bad, do a google search for Vulcan/Hesse...
Here's an example:
www dot ar15.com/archive/topic.html?b=3&f=12&t=329225
Why don't you just come out and say it was the disconnector from your NEA shorty trigger group? ... Which brings me to ask if the OP picked up some of those soft 'n cheezy NEA fire control parts now wearing out prematurely and causing the gun to double.
yes of course, a vulcan lower on a DD upper, ALSO NEA's fault BURN THE WITCH!!!
vulcan is not exactly the best brand, last i checked on arf.com like the sides blowing out among the various other issues.
hope you got er fixed
The disconnector came out of my NEA PDW. It was clearly a bad piece.
