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1/22/2020 12:12:56 PM
Posted: 1/16/2015 7:58:05 PM EST
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)
Link Posted: 1/16/2015 8:16:22 PM EST
Damn that tube is LOONNNGGGG! If the inside is about 7" deep it uses carbine parts.
Link Posted: 1/16/2015 8:17:14 PM EST
The inside runs the length of the tube. 9"
Link Posted: 1/16/2015 9:26:28 PM EST
Discussion ForumsJump to Quoted PostQuote History
Originally Posted By gibsonsg05:
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
Link Posted: 1/16/2015 10:03:45 PM EST
^^^That may be. I'll have to check it out. Thanks.
Link Posted: 1/16/2015 11:55:47 PM EST
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.
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