Prove me wrong that a 20" AR-15 is the only acceptable length

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>>34601421
12.5 inches is pretty good as well.

http://www.ar15.com/forums/t_3_16/714088_Suppressed-5-56-SBR-Velocity-Tests--41-Factory-Loads-from-10-5--11-5--12-5-and-14-5-ALL-DONE-.html

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>>34601421
Let's talk about the comedy that is black fascists instead.

>>34601466
Is this real?

>>34601466
Pls tell me more. Link?

>>34601421
acceptable? no
most efficient? yes

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It really depends on the load you're shooting and what you hope to do with the rifle. That said, I question the usefulness of 14.5 inch carbine as the primary rifle of a military. I don't think anyone else does this.

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>>34601421

for what purpose would you use a 20 round mag instead of a 30 round mag for 5.56?

if youre going to use 20 round mags you might as well be using .308

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>>34601466
Did you mean black *nazi*? Because a black fascist isn't impossible by any means, I mean it is an ideology. Plus even if you meant nazi it's not like they didn't exist.

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>>34601421

>>34601585
Prone

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>>34601421
This is the ideal AR. You may not like it, but this is what peak performance looks like.

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>>34601670
>A2 handguard
>A2l fash hider
>Collapsible stock
>Shit camo

>>34601466
Tbf, you can't bash his style.
...or his night camo.

>>34601585
Prone.
Also, you can use a 30rnd mag on a 20" AR

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Fucking lanklets

>>34601696
>A2 handguard
Is fine, I MIGHT go for a Magpul
>A2 flashhider
Is the best at what it does.
>Collapable stock
Canada and the Netherlands want to talk.
>Shit camo
MARPAT is shit?
>Larry Snickers
2/10

>>34601466
Fascists and nazis may be pieces of shit but goddamn do they have style.

>>34601585
It's to reduce the height of the silouhette when you're prone. As in Nam soldiers didn't have bulletproof body armor, the best way to avoid injury was to be prone.

>>34601421
Current NATO ammo is optimized for 20" so... yeah.

On the other hand military generally prefers full sized handguns, unlike civvies, so there's more to it than just being optimal.

>>34601466
>Dr. Goldstein, I'm SS