AR-9 build

>>35032998
Bugs... easy on the carrots

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>>35033018
Shut the fuck up

H

>>35033034
Come on, man. Food's not love.

>>35032998
I built an AR on a Tennessee Armory polymer lower. It's just fine, except for the walking issue, which is an easy fix. Polymer obviously isn't going to be as robust as a 7075 forging lower, but unless you're kicking down doors all day erryday that shouldn't be a problem.

>>35032998
9mms harsher on parts than 223

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>>35032998
The GWACs CAV-II is actually a really good polymer lower that won't crack even with 5.56, but you lose the option of having a telescoping stock.

>>35032998
L A R G E

>>35032998
>>35034974
What that guy said. CAV-15 is the best polymer lower on the market as far as reliability and robust-ness is concerned. Most polymer lowers on the market can withstand almost no abuse or significant strain. (If your building a range toy then that's not gonna be an issue. If it breaks you can get another for <$50.)

With the GWACS you lose the ability to collapse the stock or swap out the pistol grip. But, if you're on a budget you won't have to buy a pistol grip, grip screw, front and rear retention pin assemblies, stock, buffer tube, end plate, or castle nut since their all integral or unnecessary. I've got a GWACS lower and it's pretty good. The stock is about 3/4" shorter than a fully extended collapsing stock but the pistol grip has splendid ergos.

>>35035989
/goes and looks

Why the fuck did they build a rifle length stock and require you use a carbine buffer tube?

>>35036019
It's got a lot of reinforcing behind the integral buffer tube so it doesn't break under recoil. The "tube" inside the stock is still the length of a carbine tube. I don't know if they ever attempted to make a rifle buffer compatible version but it seems like it'd be pretty easy if they had a metal buffer tube insert.

>>35032998
ATI makes what is probably the best polymer lower available. They reinforce key areas with metal so you can use standard buffer assemblies. I bought one on sale out of curiosity. Works as well as any other lower.

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>>35033034
I laughed way to hard at this. Please dont be a same fag


As for poly lowers i had 2. A bought one and a 80% i milled out. Both cracked. It was about 4-5 years ago but it was enough to get me to swear off them. You might have a poly lower that dosent crack. But with aluminium you wont have to worry it ever will.

>>35036019
So that you can grind down the stock to fit your favorite length of pull without sacrificing strength behind the receiver, you stupid shotacon tripshit

>>35035989
Can confirm, pistol grip ergos on the GWACS are GOAT.

Plus it's Gun Jesus approved. Ian and Karl even fired some rounds into one and ran it over with a truck and the thing still functioned.