KJW M4 buffer

Jeff_Man · August 9th, 2011, 03:15

Hello guys,

I am sort of confused as to what to use for an upgraded stock on my KJW M4.

I tried what I think was the commercial Magpul CTR stock and it was even more wobbly than the original stock.

I would die for that crisp sound of the stock on the real M4 with no wobble, so I am wondering if you guys had any suggestions on what I could use for a new stock with minimal wobble?

Thanks

Ming_the_Merciless · August 9th, 2011, 17:43

For AR15s/M4s/M16s, there are two different stocks dimensions, commercial v. milspec, the outer diameter is greater on the commercial stocks, get a milspec and you should be good to go. You can use a commercial stock on a milspec buffer tube, but will have some play, as you experienced with your commercial CTR wobbling on your KJW M4 buffer tube, but you can't use a milspec stock on a commercial buffer tube. In your particular instance, you most likely have a buffer tube with milspec dimensions, and therefore need a milspec stock. Most stocks for airsoft are based on milspec dimensions, except for ICS which seams to use a commercial stock, but I can't confirm with airsoft replicas, because tolerances and quality assurances can be a hit or miss sometimes.

So in short, find a milspec CTR stock, the CTR's with the friction lock is the only telescopic stock I know of, that doesn't replace the standard buffer tube, that is rock solid.

http://www.bravocompanyusa.com/Magpu...20%20black.htm

If you're willing to replace the buffer tube, two other rock solid telescopic stocks that come to mind - that would have little to no play at all would be:

Magpul M93 or Falcon Industries F93
http://www.ergogrips.net/item-detail.cfm?ID=4925

Magpul UBR
http://store.magpul.com/product/MAG330/86

Pre-1898 · August 9th, 2011, 23:49

I do have the same problem on my KJW FULL METAL M4, But is the tread size the same on KJW buffer tube than a real steel one ( 1 3/16 X 16 UN ) ?

I removed the inner buffer tube from mine and the tread seem thinner that regular buffer tube so I wonder if that would fit without re-treading the receiver ??

can anyone help on this ?

Jeff_Man · August 10th, 2011, 01:56

Thanks for the help! I measured my buffer tube and it measures in at 1.10 inches, so its about .04 off of milspec, but that shouldnt mean to much of a problem right?

If I bought the CTR with the friction lock (milspec) do you think that .04 of an inch would cause alot of wobble?

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August 9th, 2011, 03:15	#1
Jeff_Man Trader rating Join Date: Aug 2011	KJW M4 buffer Hello guys, I am sort of confused as to what to use for an upgraded stock on my KJW M4. I tried what I think was the commercial Magpul CTR stock and it was even more wobbly than the original stock. I would die for that crisp sound of the stock on the real M4 with no wobble, so I am wondering if you guys had any suggestions on what I could use for a new stock with minimal wobble? Thanks

August 9th, 2011, 17:43	#2
Ming_the_Merciless Trader rating Join Date: May 2008 Location: Wichita, KS - US	For AR15s/M4s/M16s, there are two different stocks dimensions, commercial v. milspec, the outer diameter is greater on the commercial stocks, get a milspec and you should be good to go. You can use a commercial stock on a milspec buffer tube, but will have some play, as you experienced with your commercial CTR wobbling on your KJW M4 buffer tube, but you can't use a milspec stock on a commercial buffer tube. In your particular instance, you most likely have a buffer tube with milspec dimensions, and therefore need a milspec stock. Most stocks for airsoft are based on milspec dimensions, except for ICS which seams to use a commercial stock, but I can't confirm with airsoft replicas, because tolerances and quality assurances can be a hit or miss sometimes. So in short, find a milspec CTR stock, the CTR's with the friction lock is the only telescopic stock I know of, that doesn't replace the standard buffer tube, that is rock solid. http://www.bravocompanyusa.com/Magpu...20%20black.htm If you're willing to replace the buffer tube, two other rock solid telescopic stocks that come to mind - that would have little to no play at all would be: Magpul M93 or Falcon Industries F93 http://www.ergogrips.net/item-detail.cfm?ID=4925 Magpul UBR http://store.magpul.com/product/MAG330/86 __________________ http://www.youtube.com/user/ICTTacAirsoft "I am prepared to meet my Maker. Whether my Maker is prepared for the great ordeal of meeting me is another matter" -Winston Churchill "Train as you fight!" Last edited by Ming_the_Merciless; August 9th, 2011 at 18:01..

August 9th, 2011, 23:49	#3
Pre-1898 Trader rating Join Date: May 2010	I do have the same problem on my KJW FULL METAL M4, But is the tread size the same on KJW buffer tube than a real steel one ( 1 3/16 X 16 UN ) ? I removed the inner buffer tube from mine and the tread seem thinner that regular buffer tube so I wonder if that would fit without re-treading the receiver ?? can anyone help on this ?

August 10th, 2011, 01:56	#4
Jeff_Man Trader rating Join Date: Aug 2011	Thanks for the help! I measured my buffer tube and it measures in at 1.10 inches, so its about .04 off of milspec, but that shouldnt mean to much of a problem right? If I bought the CTR with the friction lock (milspec) do you think that .04 of an inch would cause alot of wobble?

KJW M4 buffer

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