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7/1/2016 2:17:10 AM EDT
I just bought parts to build a 9mm AR. Here is a list of what I have bought so far:

-NFA Glock Lower
-Spinta BCG
-Spinta 8.5" barrel
-KAK Blade and buffertube
-Geissele Mk8

What would be the best buffer and spring setup for this?
7/1/2016 2:39:16 AM EDT
[#1]
I use an H3 buffer and a SpringCo red. I still get lock back suppressed. I have not tried un-suppressed.

8" barrel
NFA upper/lower
NFA bolt

147gn reloads.
Octane .45
7/1/2016 2:39:51 AM EDT
[#2]
Quoted:
I just bought parts to build a 9mm AR. Here is a list of what I have bought so far:

-NFA Glock Lower
-Spinta BCG
-Spinta 8.5" barrel
-KAK Blade and buffertube
-Geissele Mk8

What would be the best buffer and spring setup for this?
View Quote


Personally...I go simple and easy.
A standard carbine spring, schuyler arms 9mm buffer, NFA buffer bumper.
You'll like the shockwave blade...works good on pistol builds.

.
7/1/2016 5:19:00 PM EDT
[#3]
I don't plan on running the gun suppressed and I won't be using a lrbho setup. My main goal is to just be able to reliably shoot 115gr and most defensive rounds.

Think a Wolf Extra power spring, buffer spacer, and around a 5oz buffer would achieve what I am wanting?
7/2/2016 10:01:36 AM EDT
[#4]
sprinco red spring.........RRA 9mm buffer and New Frontier Armory spacer..........shoots 115 reloads all day long.........
7/2/2016 11:53:02 AM EDT
[#5]
NFA Glock 9 mm mag lower, standard AR carbine stock and spring,  H3 buffer, no spacer in buffer tube.  Works for me with, what I think, is low recoil.

MHO, YMMV, et cetera.
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