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Posted: 10/12/2015 3:11:25 PM EDT
ar15 h buffer:
 Norm wear on edges? About 2K down the tube. |
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Posted: 10/12/2015 3:14:10 PM EDT
[#1]
Tagged for interest. Though, that looks like on 5 occasions it slammed against the retaining pin. At a wild guess, I'd say that happened during dis assembly/cleaning, rather than during firing.
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Posted: 10/12/2015 3:15:08 PM EDT
[#2]
Those deep dents are not normal In my experience.
My buffer looks like a squirrel chewed along all the edges however but nothing that deep |
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Posted: 10/12/2015 3:15:56 PM EDT
[#3]
mine doesn't look anything like that. about 3k round count. spikes t2 buffer.
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Posted: 10/12/2015 3:17:35 PM EDT
[#4]
Quote HistoryQuoted:
mine doesn't look anything like that. about 3k round count. spikes t2 buffer. Me too. Never seen that. Who made your buffer OP |
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Posted: 10/12/2015 3:19:39 PM EDT
[#5]
Looks like the bolt carrier is not making contact with the buffer at the farthest forward part of the cycling (while in battery).
When the rearward motion starts it's hitting the buffer rather than riding it which causes the wearing on the face. Then when the buffer is on the forward motion it's banging the retaining pin. |
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Posted: 10/12/2015 3:20:02 PM EDT
[#6]
Quote HistoryQuoted:
Me too. Never seen that. Who made your buffer OP Quote HistoryQuoted:
Quoted:
mine doesn't look anything like that. about 3k round count. spikes t2 buffer. Me too. Never seen that. Who made your buffer OP Been shooting ARs/M16s since 1982, I have never seen dings like that on a buffer. Some of the wore out POSs we were issued at ITS at Geiger were pretty bad off too. |
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Posted: 10/12/2015 3:20:13 PM EDT
[#7]
I've never seen that on beat to shit M-16's. It is either smacking the retaining pin super hard or it was cast from Asian pot metal.
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Posted: 10/12/2015 3:20:37 PM EDT
[#8]
FireClean?
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Posted: 10/12/2015 3:21:12 PM EDT
[#9]
It appears to have smacked the buffer retainer pin a few times. That's either really soft aluminum (other?), or the buffer somehow smacked the pin really fookin' hard a few times. Not sure how.
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Posted: 10/12/2015 3:24:56 PM EDT
[#10]
Who made your bolt carrier? I'm almost wondering if it's a hair too short? The rest of the buffer (where the BC hits it) doesn't look as chewed up as I'm used to seeing.
Then again, I don't often pay that close attention to it. |
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Posted: 10/12/2015 3:40:56 PM EDT
[#11]
Not even close to being right.
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Posted: 10/12/2015 3:48:34 PM EDT
[#12]
If the buffer hit the retaining pin that hard, it would shear the pin.
It is probably caused by the upper or carrier striking the buffer when you close it. Any corresponding marks on the upper or rear of the carrier? |
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Posted: 10/12/2015 6:10:14 PM EDT
[#13]
Id almost think that damage was done prior to the rifle being used / built.
There is simply not enough force in the buffer spring to cause that, and if there was it would elongate the hole for / shear the retainer |
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Posted: 10/12/2015 6:16:13 PM EDT
[#14]
BCM H buffer. I've used the same complete lower and slapped on a few uppers that I've built over the past few months.
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Posted: 10/12/2015 6:17:00 PM EDT
[#15]
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Posted: 10/12/2015 6:27:04 PM EDT
[#16]
Bump for input
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Posted: 10/12/2015 6:40:49 PM EDT
[#17]
May we see the other end?
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Posted: 10/12/2015 6:43:57 PM EDT
[#18]
from cleaning or an out of spec carrier..or out of spec lower..
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Posted: 10/12/2015 6:45:11 PM EDT
[#19]
All of mine are pristine, even after heavy use. Only the silicone rubber plug eventually starts to wear down.
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Posted: 10/12/2015 6:46:15 PM EDT
[#20]
that's not from slamming in to the retaining pin, something would break if that was the case. I'm thinking you are slamming the upper shut on it
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Posted: 10/12/2015 6:47:12 PM EDT
[#21]
Quote HistoryQuoted: It appears to have smacked the buffer retainer pin a few times. That's either really soft aluminum (other?), or the buffer somehow smacked the pin really fookin' hard a few times. Not sure how. |
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Posted: 10/12/2015 6:48:23 PM EDT
[#22]
Interesting
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Posted: 10/12/2015 6:48:43 PM EDT
[#23]
The other side looks pretty normal. It's just dis colored from use
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Posted: 10/12/2015 6:48:45 PM EDT
[#24]
It looks like it's smacking the detent.
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Posted: 10/12/2015 6:50:08 PM EDT
[#25]
I have had an out of spec Mag Tactical lower that had the buffer retaining detent hole in the wrong spot allowing the buffer to beat the snot out of the retainer. Had those marks all the way around after the first day shooting it.
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Posted: 10/12/2015 6:53:34 PM EDT
[#26]
Quote HistoryQuoted:
The other side looks pretty normal. It's just dis colored from use HD Buffer/Recoil spring in there? |
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Posted: 10/12/2015 6:53:47 PM EDT
[#27]
Quote HistoryQuoted:
that's not from slamming in to the retaining pin, something would break if that was the case. I'm thinking you are slamming the upper shut on it With the rear of the BC sticking out a smidge, maybe? Because fully seated, I still don't see how that's happening. And you think you'd know/hear/feel it when you tried slamming the upper shut. Definitely strange. |
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Posted: 10/12/2015 6:59:44 PM EDT
[#28]
what kind of lower do you have? i saw a poly lower disintegrate at a class one day, the retaining pin somehow sheared off and caused major issues. buffer had a ding in it like that but only one, and the bcg had obviously made contact with metal as well. we almost weren't able to get that gun disassembled.
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Posted: 10/12/2015 7:02:27 PM EDT
[#29]
Normal wear, not mine
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Posted: 10/12/2015 7:05:20 PM EDT
[#30]
Quote HistoryQuoted: HD Buffer/Recoil spring in there? Quote HistoryQuoted: Quoted: The other side looks pretty normal. It's just dis colored from use HD Buffer/Recoil spring in there? |
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Posted: 10/12/2015 7:05:35 PM EDT
[#31]
Quote HistoryQuoted: what kind of lower do you have? i saw a poly lower disintegrate at a class one day, the retaining pin somehow sheared off and caused major issues. buffer had a ding in it like that but only one, and the bcg had obviously made contact with metal as well. we almost weren't able to get that gun disassembled. |
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Posted: 10/12/2015 7:05:59 PM EDT
[#32]
What do you guys want me to take photos of to help you possibly diagnose this???
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Posted: 10/12/2015 7:07:06 PM EDT
[#33]
You sure the buffer wasn't dinged up already before you installed it?
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Posted: 10/12/2015 7:13:52 PM EDT
[#34]
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Posted: 10/12/2015 7:16:06 PM EDT
[#35]
Quote HistoryQuoted: You sure the buffer wasn't dinged up already before you installed it? |
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Posted: 10/12/2015 7:16:39 PM EDT
[#36]
Quote HistoryThought about it, but figured Id get more exposure in GD |
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Posted: 10/12/2015 7:59:10 PM EDT
[#37]
Buffer O.D. looks REALLY Oblong, VS the flat every 120*.
Never saw one like that. |
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Posted: 10/12/2015 8:00:49 PM EDT
[#38]
Are you using the correct spring?
Looks like it is walking around in a circle. |
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Posted: 10/12/2015 8:04:21 PM EDT
[#39]
Quote HistoryQuoted:
What do you guys want me to take photos of to help you possibly diagnose this??? How about the fucked up BCG. |
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Posted: 10/12/2015 8:16:01 PM EDT
[#40]
Quote HistoryQuoted: How about the fucked up BCG. Quote HistoryQuoted: Quoted: What do you guys want me to take photos of to help you possibly diagnose this??? How about the fucked up BCG. |
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Posted: 10/12/2015 8:25:35 PM EDT
[#41]
I've never seen that on 10k+ rounds on a buffer.
Not normal. |
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Posted: 10/12/2015 8:27:10 PM EDT
[#42]
Quote HistoryQuoted: I've never seen that on 10k+ rounds on a buffer. Not normal. |
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Posted: 10/12/2015 8:30:07 PM EDT
[#43]
Kinda thinking this
Quoted: You sure the buffer wasn't dinged up already before you installed it? |
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Posted: 10/12/2015 8:49:27 PM EDT
[#44]
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Posted: 10/12/2015 8:59:21 PM EDT
[#45]
looks like the bcg is hitting it when you change/close the upper on the lower.
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Posted: 10/12/2015 9:00:40 PM EDT
[#46]
I bet the dings are when OP removed the buffer and it slammed into the hammer. Sprong.
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Posted: 10/12/2015 9:01:29 PM EDT
[#47]
Quote HistoryQuoted: I bet the dings are when OP removed the buffer and it slammed into the hammer. Strong. |
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Posted: 10/12/2015 9:02:11 PM EDT
[#48]
Not normal. Your buffer retaining pin hole is probably out of spec
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Posted: 10/12/2015 9:03:18 PM EDT
[#49]
Quote HistoryQuoted:
Nope. I am very conscience of that. I respect my Geissele's! Quote HistoryQuoted:
Quoted:
I bet the dings are when OP removed the buffer and it slammed into the hammer. Strong. Is there a burr on the rear of the bolt carrier? Is there anything in there that it could possibly contact that is dinged up? |
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Posted: 10/12/2015 9:03:21 PM EDT
[#50]
No Happy switch
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