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zombiescanlearn
04-21-2012, 7:19 PM
Wrong forum? If it is, I apologize, but the question has to do with an AR.

So the question is: Why are there buffer tubes on the AR pistols if you can't put a stock on it?

Elwood_Blues
04-21-2012, 7:23 PM
Because you still need the spring and buffer housed in that tube in order for the system to work.

http://www.youtube.com/watch?v=WSqYvWib1og

arsilva32
04-21-2012, 7:47 PM
yup without the receiver extension the bolt carrier would have no where to go. the 22lr conversions don't need the buffer tube,also some of the olympic pistols worked out a tubeless action:
http://olyarms.net/index.php?page=shop.product_details&flypage=flypage.pbv.v8.tpl&product_id=37&category_id=8&option=com_virtuemart&Itemid=5

ott1
04-21-2012, 8:03 PM
And if you get Young Manufacturing's AR pistol upper, it does away with the buffer.

dachan
04-21-2012, 8:25 PM
So the question is: Why are there buffer tubes on the AR pistols if you can't put a stock on it?

Thinking the same thing, so I took the buffer tube off my AR pistol and the BCG hit me square between the eyes first time I fired it.

Grumpyoldretiredcop
04-21-2012, 10:40 PM
Thinking the same thing, so I took the buffer tube off my AR pistol and the BCG hit me square between the eyes first time I fired it.

And no pics? Shame on you, sir. :D

By way of adding something useful to this thread, that buffer and tube have another useful purpose. I built a dedicated .22LR pistol which, of course, needs no buffer or tube. Instead, I installed a plug from Spike's Tactical. Besides looking like something Han Solo might have been more comfortable with, it was very front heavy and not easy to shoot well. Adding a pistol buffer tube, buffer and spring brought the center of balance back somewhere around the grip, making it much easier to shoot well. A bonus is the ability to install a centerfire upper (or install a 5.56 BCG and fire it as a single shot, it having been built with a shortened M16A1 barrel and no FSB or gas tube - haven't tried that yet, I imagine it'd be a bit of a flamethrower).

MrPlink
04-21-2012, 10:57 PM
BUFFER tube. Learn how guns work

vta
04-21-2012, 11:48 PM
Buffer tube, aka receiver extension. Do you own an AR?

KaLiFORNIA
04-22-2012, 5:27 AM
It also adds another point of contract. I shoot an ar pistol much better than an ak pistol for this very reason

KaLiFORNIA
04-22-2012, 5:28 AM
Contact*

Rockit
04-22-2012, 5:37 AM
And if you get Young Manufacturing's AR pistol upper, it does away with the buffer.
Not quite.....just shortens it a lot.

Bete Noire
04-22-2012, 6:01 AM
Rock river has piston AR pistol with forward charging handle and zero buffer tube.

zombiescanlearn
04-22-2012, 8:08 AM
Rock river has piston AR pistol with forward charging handle and zero buffer tube.

This is why I get confused. Why do some have them and others do not?

zombiescanlearn
04-22-2012, 8:09 AM
Buffer tube, aka receiver extension. Do you own an AR?

See here:

http://www.calguns.net/calgunforum/showthread.php?t=563010

CHS
04-22-2012, 10:06 AM
This is why I get confused. Why do some have them and others do not?

Because those are not standard AR's at all. They have heavily modified the internals and BCG to be much shorter so they have all their travel inside the upper receiver.

Guns without buffer tubes though tend to suffer from bolt bounce problems.

Baconator
04-22-2012, 10:13 AM
See here:

http://www.calguns.net/calgunforum/showthread.php?t=563010

http://www.shootingillustrated.com/index.php/12743/rock-river-arms-lar-pds-carbine/

This talks about how they are able to not have a buffer tube on some of the rra ar pistols. They are piston operated and function a bit differently and don't require a buffer tube.

http://www.rockriverarms.com/images/products/rra_pdsp12.pdf

the ejection port is moved forward to allow the bcg to still cycle a cartridge.

MrPlink
04-22-2012, 11:57 AM
This is why I get confused. Why do some have them and others do not?

I'll say it again!
LEARN HOW GUNS WORK :facepalm: :p

MrPlink
04-22-2012, 11:59 AM
See here:

http://www.calguns.net/calgunforum/showthread.php?t=563010

do you really want to admit to owning one of the most expensive AR derivatives out there and then admit you have no idea how they work?

zombiescanlearn
04-22-2012, 7:18 PM
do you really want to admit to owning one of the most expensive AR derivatives out there and then admit you have no idea how they work?

That's how you learn, you ask questions from those who know.

zombiescanlearn
04-22-2012, 7:20 PM
http://www.shootingillustrated.com/index.php/12743/rock-river-arms-lar-pds-carbine/

This talks about how they are able to not have a buffer tube on some of the rra ar pistols. They are piston operated and function a bit differently and don't require a buffer tube.

http://www.rockriverarms.com/images/products/rra_pdsp12.pdf

the ejection port is moved forward to allow the bcg to still cycle a cartridge.

Thank you! This is what I was looking for.