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4/12/2016 4:48:50 PM EDT
I built my first, and so far only, AR with a 20" bbl and rifle gas.  The lower has a spikes T2 buffer in it, which is 4.1 oz I think.

I'm building another upper - this upper is 16" with mid length gas.   There is no muzzle device on it or planned.

Am I going to get away with my T2 buffer using this upper?
4/12/2016 6:01:06 PM EDT
[#1]

yes

4/12/2016 10:39:35 PM EDT
[#2]
Most likely will be just fine...
4/15/2016 10:59:55 PM EDT
[#3]
Got it out today.  Worked fine.  Ran 60 rounds through it today, no problems, bolt locked back on empty mags every time.
4/16/2016 9:22:09 AM EDT
[#4]
You should have no problem with your ST-T2, it's what I run in all my rifles both carbine and midlength and they run great.
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