06-27-2012, 16:39
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#1
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Quiet Professional
Join Date: Sep 2007
Location: Orange, Ca.
Posts: 4,950
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Unusual Malfunction
My son is an LEO- While adjusting a new optic, his M4 started have a failure to cycle. He took it to his armorer who discovered a piece of primer in the gas tube. The armorer said he had never seen anything like it in 30 years. The armorer thought it was the Winchester ammo he was using...
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mark46th is offline
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06-27-2012, 19:35
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#2
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Quiet Professional
Join Date: Jan 2004
Location: Fayetteville NC
Posts: 3,533
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Never saw that in the M4 but have in the SR25 shooting Winchester ammo.
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Hold Hard guys
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Author - Richard. 
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Author unknown. 
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longrange1947 is offline
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06-27-2012, 23:32
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#3
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Quiet Professional
Join Date: Jan 2004
Location: Phoenix, AZ
Posts: 20,929
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Quote:
Originally Posted by mark46th
My son is an LEO- While adjusting a new optic, his M4 started have a failure to cycle. He took it to his armorer who discovered a piece of primer in the gas tube. The armorer said he had never seen anything like it in 30 years. The armorer thought it was the Winchester ammo he was using...
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The anvil?
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"The Spartans do not ask how many are the enemy, but where they are."
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Team Sergeant is offline
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06-28-2012, 17:50
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#4
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Guerrilla
Join Date: Apr 2012
Location: Eau Claire, WI
Posts: 136
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In the end of the gas tube that goes into the Gas Key?
Was he shooting 5.56 in a .223 chamber and popped the primer?
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Rob_Frey is offline
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06-28-2012, 22:24
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#5
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Quiet Professional
Join Date: Sep 2007
Location: Orange, Ca.
Posts: 4,950
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A piece of the primer, not the whole thing, ended up in the gas tube, I don't know how far, but the armorer saw it when he shined a light in to the tube. Next time I talk to him, I will get more details...
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mark46th is offline
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06-30-2012, 05:59
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#6
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Quiet Professional
Join Date: Jul 2005
Location: Lacey Washington
Posts: 737
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Quote:
Originally Posted by mark46th
My son is an LEO- While adjusting a new optic, his M4 started have a failure to cycle. He took it to his armorer who discovered a piece of primer in the gas tube. The armorer said he had never seen anything like it in 30 years. The armorer thought it was the Winchester ammo he was using...
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Guys:
Happened to me with a JP upper and some handloads. Can't remember the brand of primer. The primer blew and got stuck in the gas key. Had to totally replace the gas key.
I can't begin to imagine the probability of that happening as the primer barely fits into that thing.
Gene
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Gene Econ is offline
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06-30-2012, 21:02
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#7
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Quiet Professional
Join Date: Sep 2007
Location: Orange, Ca.
Posts: 4,950
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I spoke to my son. The piece of the primer was in the gas key, all the way to the back of it.
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mark46th is offline
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07-07-2012, 06:05
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#8
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Guerrilla
Join Date: Feb 2004
Location: Finland
Posts: 400
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I have seen primer parts only once in the gas key.
Just witnessed this week a primer wedged in between the bolt carrier and cam pin, was a bitch to remove the carrier from the weapon.
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Tuukka is offline
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07-07-2012, 07:37
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#9
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Quiet Professional
Join Date: Jan 2004
Location: DFW Texas Area
Posts: 4,741
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I heard about primers comming out and locking up M60s back in the Late 80s to early 90s. That put my "Reloading Operation" of .308 on hold.
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Martin sends.
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Ambush Master is offline
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07-11-2012, 21:49
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#10
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Guerrilla
Join Date: May 2010
Location: Wisconsin BCM territory
Posts: 152
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I have personally seen 5 documented cases of this happening. In every single it was due to the chamber being non 5.56 and the primer blew back into the weapon during the cycle of operation.
The weapons that I know that were involved were Bushmaster carbines and 1 DPMS.
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Iraqgunz is offline
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