Do extended buffer tubes use standard springs?

AR-15 » AR Pistols

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[ARCHIVED THREAD] - Do extended buffer tubes use standard springs?

Posted: 1/16/2015 8:58:05 PM EDT

Hello,

I'm currently putting together an AR pistol in 9mm. I purchased an extended buffer tube, but I am wondering if the standard carbine spring will work?
Thanks for any info.

Specs:
-PSA Pistol Lower
-Exos Defense Extended Buffer Tube
-MAS Defense Complete Upper 7.25"
-Tactical Ambush BCG/Charging Handle
-Spikes Tactical Magwell Block
(Optics are temporary)

Posted: 1/16/2015 9:16:22 PM EDT

[#1]

Damn that tube is LOONNNGGGG! If the inside is about 7" deep it uses carbine parts.

Posted: 1/16/2015 9:17:14 PM EDT

[#2]

The inside runs the length of the tube. 9"

Posted: 1/16/2015 10:26:28 PM EDT

[#3]

Quote History

Quoted:
The inside runs the length of the tube. 9"

View Quote

I bet it doesn't open up to full diameter till a couple inches past hole in end, just like the KAK.

- OS

Posted: 1/16/2015 11:03:45 PM EDT

[#4]

^^^That may be. I'll have to check it out. Thanks.

Posted: 1/17/2015 12:55:47 AM EDT

[#5]

There should be a plug in the tube so that the interior is the same length as a standard carbine tube. Use a standard carbine buffer and spring.

[ARCHIVED THREAD] - Do extended buffer tubes use standard springs?

AR-15 » AR Pistols

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