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Im Broken
03-20-2011, 8:01 PM
So I took out my JD machine AR yesterday for the second time and it went really well. Except, I was going through some footage taken at the range and I noticed it was making a pinging sound after it returned to battery. It didn't FTF or FTE a single time, I'm just wondering what gives?? It didn't do it the first time around.

Any suggestions?

Vanilla Gorilla
03-20-2011, 8:03 PM
was the sound you heard like a spring?

Im Broken
03-20-2011, 8:14 PM
Yea kinda. I expected it to be from the buffer tube cause I can hear it next to my ear, but this one is more pronounced.

Reductio
03-20-2011, 8:15 PM
You weren't shooting steel, were you? :D

Ape
03-20-2011, 8:18 PM
Post the vids so we can hear and make our assesments. ;)

Im Broken
03-20-2011, 8:20 PM
You weren't shooting steel, were you? :D

No. Lol. Its just bothering me because it didn't do it before. The only other thing that I can think of is the buffer hitting the buffer stop.

Vanilla Gorilla
03-20-2011, 8:34 PM
Post the vids so we can hear and make our assesments. ;)

+1 post the vid so we can hear this sound
mine makes a spring noise but that is just the buffer spring

$P-Ritch$
03-20-2011, 8:46 PM
Do you trap the trigger after each shot then let it reset? That is how I shoot and I had a guy at a three gun match tell me my AR made a weird "click-noise" about a half second after each shot.

I agree with posting the video, that would be the best way for others to hear what you are talking about.

Im Broken
03-20-2011, 8:53 PM
I don't have a pc available to me at the moment to post the vids. I am on my phone currently. Ill try to as soon as I can. Should it be something to get worried about

pacrimguru
03-20-2011, 8:56 PM
do you have a prong style flash hider like a vortex or vltor? they tend to give off a high pitched ping sound.

Im Broken
03-20-2011, 9:05 PM
Its a prong style like the vortex but if that's the case why would it seem like its coming from the rear

wrightb
03-20-2011, 9:07 PM
do you have a prong style flash hider like a vortex or vltor? they tend to give off a high pitched ping sound.

This is what I guessed, sounds similar to a tuning fork.

wrightb
03-20-2011, 9:13 PM
Its a prong style like the vortex but if that's the case why would it seem like its coming from the rear

Are you going from what you hear in the video alone? I'd get it out and charge it. The prongs definitely produce a ping

Im Broken
03-21-2011, 5:26 AM
Are you going from what you hear in the video alone? I'd get it out and charge it. The prongs definitely produce a ping

Yea I am going by what I hear on the video. Hmmm, I'm just curious because I really didn't hear it the first time I took it out to the range. It cycled and fired fine so I didn't really think much of it till I got home.

pacrimguru
03-21-2011, 6:25 AM
next time you go out, pay particular attention to the pinging sound. i can guarantee you it's your flash hider.

Bigdaa
03-21-2011, 6:37 AM
The all make a springy sproingy noise.......short of the pnuematic buffers.

shark92651
03-21-2011, 6:45 AM
Sproing in the back, ping in the front - what the heck! Are these rifles or musical instruments!?


:D

Flintlock Tom
03-21-2011, 6:49 AM
Did it, maybe, sound like brass hitting concrete?;)

Jaxpire
03-21-2011, 6:50 AM
Is this what you are hearing? found this on youtube, this is not my video.

gcOYLZUh_TY

the big ravioli
03-21-2011, 6:55 AM
Get a buffer pad and put a small amount of PAM in your tube.. It will go away. I have had the same problem and that's the remedy I was told. It works!

Sgt. Slaughter
03-21-2011, 7:33 AM
Have you ever shot your AR without ear protection? I shoot without hearing ear protection sometimes and my rifles seem to make a pinging sound that I don't hear when I've got plugs in... that could be it I guess.