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9/2/2013 8:21:33 AM EDT
Hi ALL

I had a buffer come apart in my tube. the crimp seal came apart and two weights and a separator pad came out.

I decided to epoxy everything in place. I had two buffer counterweights as spares and I noticed that in both the weights were loose.

My question is are the weights loose as a manufacturing convenience or is there a functional reason for loose weights in the buffer?

Anyone know if an epoxied buffer system is a safety problem and will it work OK. I will probably put a new one in but I was wondering if anyone knew?

Best regards,

Jim
9/2/2013 8:36:03 AM EDT
[#1]
The weights are loose on purpose.  They provide a different function than just the overall mass of the buffer.
9/2/2013 8:37:37 AM EDT
[#2]
The weights are supposed to be loose inside the buffer.
Look here. See post #20.
9/2/2013 8:45:06 AM EDT
[#3]
Going off basic physics, having the weights loose they will work against the direction the buffer travels and countering it due to centrifugal force.
9/2/2013 9:08:58 AM EDT
[#4]
All

Thank you for the answer. They are loose on purpose. I will change it out and discard.

Jim
9/2/2013 9:22:59 AM EDT
[#5]
Quote History
Quoted:
Going off basic physics, having the weights loose they will work against the direction the buffer travels and countering it due to centrifugal force.
View Quote

"Inertia," not "centrifugal force," but your explanation is otherwise great.  (Yes, I have to do that, having been an instructor for so long, I can't help it.)
9/2/2013 10:06:05 AM EDT
[#6]
Buffer came apart, so what happened to the roll pin that holds it together?
9/2/2013 10:26:47 AM EDT
[#7]
Quote History
Quoted:

"Inertia," not "centrifugal force," but your explanation is otherwise great.  (Yes, I have to do that, having been an instructor for so long, I can't help it.)
View Quote View All Quotes
View All Quotes
Quote History
Quoted:
Quoted:
Going off basic physics, having the weights loose they will work against the direction the buffer travels and countering it due to centrifugal force.

"Inertia," not "centrifugal force," but your explanation is otherwise great.  (Yes, I have to do that, having been an instructor for so long, I can't help it.)


I appreciate the correction; I was thinking centrifugal; my synapses in my brain didn't connect to inertial until you mentioned it.
9/2/2013 12:20:41 PM EDT
[#8]
Lastrights - there was no roll pin. The outer tube was held together with a crimp. The weights were inside and apparently designed as able to slide free. On one end the plastic fitment was crimped and on the other end the metallic aluminum end cap was roll crimped. The weights were held within the annular space that the tube itself.
9/2/2013 5:44:54 PM EDT
[#9]
Get a milspec buffer of whatever weight floats your boat.  Get rid of the crappy crimped one.  They are not that expensive.
9/2/2013 5:46:48 PM EDT
[#10]
Never seen a crimped one, that sucks

Who makes that?  Was it in a factory built rifle?
9/4/2013 4:02:04 PM EDT
[#11]
Sounds like you were forked and at this point I would be wondering how many other parts are garbage also.
9/4/2013 10:29:19 PM EDT
[#12]
Quote History
Quoted:
Never seen a crimped one, that sucks

Who makes that?  Was it in a factory built rifle?
View Quote


I've never seen one.
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