So Lets talk AR15 CARBINE BUFFERS

while we are talking buffers what about this?

so I got to thinking as well, why do the buffers has the 3 flats on the side of the head of the buffer.
you would think its for clearance so it can get into the buffer tube , but there is tones of room for that, I just cant find anyone that can tell me why they are there?
Is it a case that its always been done that way , and no one has bothered to question it??
 
badboybeeson said:
That's good to here?
how many rounds down the pipe on the S&j bbl now??
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~2500. Got it Nov last year. Was a refurb I got on sale.

I have an SS buffer that does not have the flats you're talking about.

From what I recall, when you start making inquiries like this, it's cause you're about to start making the thing you're inquiring about.

Coming soon, Stainless Steel Tungsten weighted HSS buffers from S&J.
 
My 16"KAC runs anything with the stock KAC buffer......I am at the 1100rds of mixed 55/62 grain ( close up training 100meters and in ) and its a champ .11/.10 spilt times
 
why do the buffers has the 3 flats on the side of the head of the buffer.
you would think its for clearance so it can get into the buffer tube , but there is tones of room for that, I just cant find anyone that can tell me why they are there?
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From what I understand, it's to allow air to escape around the buffer so you don't end up with a pneumatic-spring type effect.
If you get too much crud between the buffer and the tube, potentially it could create a 'seal' which could possibly slow down the rearward travel of the bolt.

Does this mean I get a free buffer?? ;)
 
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I don't know if this is a good idea or not (seems like it off the top of my head).........

What about a buffer 'kit', that comes with an easily removable rubber plug and an assortment of steel and tungsten weights so that the user could adjust their buffer weight without having to buy multiple complete buffer assemblies?

Anyone? Thoughts?
 
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Your post about the purpose of the machined flats makes sense MALICE. Regarding your kit idea, It would probably have a following for those that like to tinker or have specific requirements for different loads they run.

Personally, I think an adjustable buffer is just one more thing that could fail when you absolutely need it to not fail. Which in Canada mostly means when you are prancing around the range trying to look cool. :D
 
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I think that if the buffer 'bumper' was molded onto a threaded stud (that had wrench flats) and you had a lock washer inside the end of the buffer to keep the bumper from un-threading, one would probably eliminate failures in all but the most extreme circumstances.

I wouldn't necessarily advocate using it if one was using their gun for life/death situations, but as clobbersauras pointed out, most people in Canada wouldn't need to worry about it. :)
 
OP, don't know if this will help or not, but it's worth a shot:

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Mark
 
*MALICE* said:
From what I understand, it's to allow air to escape around the buffer so you don't end up with a pneumatic-spring type effect.
If you get too much crud between the buffer and the tube, potentially it could create a 'seal' which could possibly slow down the rearward travel of the bolt.

Does this mean I get a free buffer?? ;)
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See good minds think alike.
As that was the only reason my partner could could come up with, a he's a Eng P.
But no one i talked too could give me a firm answer.
Email me next week. And I'll send you a buffer to play with
Bbb
 
Clobbersauras said:
Personally, I think an adjustable buffer is just one more thing that could fail when you absolutely need it to not fail. Which in Canada mostly means when you are prancing around the range trying to look cool. :D
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Not at all. I have an adjustable buffer. If goes together the same way and a non adjustable one.

You have the rubber plug in the end, and a pin holding it in. The only diff' between the two is the adj' buffer comes with a weight kit and the other does not.

Only problem I had with my kit is the pin would walk out a little bit, but that's a QC issue that was quickly solved. Could of happened to any buffer.
 
*MALICE* said:
Who sells/makes your kit, Conte?
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"heavybuffers dot com"

Or maybe coming soon from S&J.

The kit is actually an Anti Tilt kit they made for piston guns. They don't have a kit listed for their normal buffers.
It came with 3 derelin weights, 3 steel weights, and you have the option of buying 3 tungsten weights to bring it up to +8oz.

I ended up using all 3 steel weights to run it at 6oz.
In retrospect, setting it up light with only derelin to serve as your dead blow might not be good at preventing bolt bounce.
What I have has essentially the same weights you find in a standard 3oz buffer, just with a heavier casing.
I did learn a lot about buffer weights and how they effect the timing and what not.
 
Originally Posted by *MALICE* View Post

From what I understand, it's to allow air to escape around the buffer so you don't end up with a pneumatic-spring type effect.
If you get too much crud between the buffer and the tube, potentially it could create a 'seal' which could possibly slow down the rearward travel of the bolt.

Does this mean I get a free buffer??
See good minds think alike.
As that was the only reason my partner could could come up with, a he's a Eng P.
But no one i talked too could give me a firm answer.
Email me next week. And I'll send you a buffer to play with
Bbb


I will suggest going one farther, from the standpoint of say a Seals operation, coming out of the water quickly and having the buffer tube full of water. Fluids do not compress and if there were a seal it could cause failure of the stock tube when fired and it hydraulics. If this happened at the same time the gas tube was full of water it may cause the gas tube to burst as well. At best it would cause your rifle to be a single shot.
 
I run a Daniel Defense recoil spring with a H buffer. Carbine has a 14.5" barrel and carbine length gas system. Only stoppages i've had have been from failing to seat the magazine properly. Anyone know where to get a H2 buffer?
 
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