ar or ak...?

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ar or ak...?

Post by zombie_kibble » Sun Nov 11, 2012 2:30 pm

anyone heard much about these. I personally think they are awesome...trying to figure out how to get one without the ball and chain finding out :?
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Re: ar or ak...?

Post by Viper shtf » Sun Nov 11, 2012 3:33 pm

What the christ...?
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Re: ar or ak...?

Post by jackal556 » Sun Nov 11, 2012 3:40 pm

In 2001, they were called the SR-47 and I think Knight was making them. I imagine someone will search engine it.
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Re: ar or ak...?

Post by zombie_kibble » Sun Nov 11, 2012 3:44 pm

Viper shtf wrote:What the christ...?
thats what i thought.

it looks like a normal a4 upper so i hope the lower becomes available separate. my 7.62 upper is supposed to arrive tomorrow to finish the build on my zs lower from the group buy. if i can buy that lower it would be a good excuse to get that .300 blackout upper for the zs lower :D
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Re: ar or ak...?

Post by Unorthodox » Sun Nov 11, 2012 5:22 pm

jackal556 wrote:In 2001, they were called the SR-47 and I think Knight was making them. I imagine someone will search engine it.
Nah, difference between the two is KAC had to figure out a way to keep the standard M4 mag release. With the RRA, its an ambi-latch.

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Re: ar or ak...?

Post by crypto » Sun Nov 11, 2012 5:28 pm

Ugh. Why didnt they put the mag catch outside the guard? A rock and lock sucks if you cant scrape the old mag out.

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Re: ar or ak...?

Post by Unorthodox » Sun Nov 11, 2012 5:30 pm

crypto wrote:Ugh. Why didnt they put the mag catch outside the guard? A rock and lock sucks if you cant scrape the old mag out.

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Read a gun rag that had the RRA in it. Even when the mag release is hit, you still need to pull the mag from the magwel. It doesn't drop free. So yeah. Clownshoes.
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Re: ar or ak...?

Post by Doctorr Fabulous » Sun Nov 11, 2012 5:32 pm

So, it has everything that sucks about the AK (rock in mags, shit round) combined with a proprietary latch and porprietary parts out the wazoo?

BTW, I would not count on any of the parts on this being useable on a .300BO build. Different bolt, different chamber, etc.
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Re: ar or ak...?

Post by zombie_kibble » Sun Nov 11, 2012 6:29 pm

Doc Torr wrote: BTW, I would not count on any of the parts on this being useable on a .300BO build. Different bolt, different chamber, etc.
go read what i wrote...? Do you mean the bolt would be different than a a4 7.62x39 upper? Im confused.
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Re: Re: ar or ak...?

Post by Doctorr Fabulous » Sun Nov 11, 2012 7:17 pm

zombie_kibble wrote:
Doc Torr wrote: BTW, I would not count on any of the parts on this being useable on a .300BO build. Different bolt, different chamber, etc.
go read what i wrote...? Do you mean the bolt would be different than a a4 7.62x39 upper? Im confused.
I'm having a bit of trouble (grammar/punctuation or lack thereof) and my reading was that you were hoping you could run the A4 7.62 (byt what, I'm not sure) with .300BO, or something.

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Re: Re: ar or ak...?

Post by zombie_kibble » Sun Nov 11, 2012 7:35 pm

Doc Torr wrote:
zombie_kibble wrote:
Doc Torr wrote: BTW, I would not count on any of the parts on this being useable on a .300BO build. Different bolt, different chamber, etc.
go read what i wrote...? Do you mean the bolt would be different than a a4 7.62x39 upper? Im confused.
I'm having a bit of trouble (grammar/punctuation or lack thereof) and my reading was that you were hoping you could run the A4 7.62 (byt what, I'm not sure) with .300BO, or something.

Sent from magic talkbox.
lol...When posting from a cell phone punctuation goes out the window. I was trying to say that the 7.62x39 upper I own would mount up to the RRA lower. Thus, making the ZS lower I have under the 7.62x39 open to be mounted under a .300BO. In that instance everything would transfer, right? Magazines obviously excluded.

P.S. Wasn't trying to sound like an asshole on the last post but it kind of came out that way.
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Re: ar or ak...?

Post by thechin » Sun Nov 11, 2012 10:21 pm

Found a performance on guns and ammo website. “Brass-cased ammunition from Remington and Winchester produced virtually identical results. Though Winchester had a slightly better extreme spread of only 30 fps across the chronograph, Remington’s 123-grain FMJ grouped five averages of five shots in 1.6 inches from 100 yards. With Winchester printing an average group of 1.8 inches”

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I would buy one of these rifles right this instance if Rock River did two or three things:
1) Increase barrel length between 18-20 inches
2) Post vids of function and performance testing firing steel-cased 7.62x39mm.
And/or
3) Switch out the direct infringement and make it piston driven
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Re: ar or ak...?

Post by zombie_kibble » Sun Nov 11, 2012 10:26 pm

+1 on the piston drive...and everything else for that matter. Since its brand new and not even in production yet if its a hit we may see more of that stuff

In the first 7.62x 39 ar I built put a different firing pin in and dropped malfunctions to about 1 in 100
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Re: ar or ak...?

Post by crypto » Sun Nov 11, 2012 10:32 pm

AR's dont need to be piston driven. Period.

ETA: So basically you want this piece of shit to be a Mini-30. Good luck with that LOL
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Re: ar or ak...?

Post by Doctorr Fabulous » Sun Nov 11, 2012 10:35 pm

They make a great battle rifle in 7.62x39 thatwill eat steel-case all day, comes with a 20' barrel option, and even has a piston action!

It's called an AK.
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Re: ar or ak...?

Post by Czechnology » Sun Nov 11, 2012 10:36 pm

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Re: ar or ak...?

Post by zombie_kibble » Sun Nov 11, 2012 10:37 pm

crypto wrote:AR's dont need to be piston driven. Period.
Necessary...no...but still kinda cool. besides some x39 ammo can be dirty and if you plug that gas tube you got a flashy single shot.
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Re: ar or ak...?

Post by zombie_kibble » Sun Nov 11, 2012 10:37 pm

Czechnology wrote:Image
oh i got an ss also
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Re: ar or ak...?

Post by crypto » Sun Nov 11, 2012 10:40 pm

No, not kinda cool. Piston driven AR's eat themselves due to non-axial forces on the bolt carrier. Instead of the pressure inside the bolt carrier driving the carrier backwards linearly backwards, you have an op-rod smashing into where the gas key goes, which tries to tilt the back of the carrier down and the front of it up.

All the piston AR's are having longevity issues as the carrier starts chewing up the rails it rides in.

Thats a topic for another thread though.
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Re: ar or ak...?

Post by Czechnology » Sun Nov 11, 2012 10:41 pm

zombie_kibble wrote:Necessary...no...but still kinda cool. besides some x39 ammo can be dirty and if you plug that gas tube you got a flashy single shot.
If you can plug a gas tube with 60,000 PSI going through it, I'll give you $5.
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Re: ar or ak...?

Post by Doctorr Fabulous » Sun Nov 11, 2012 10:42 pm

zombie_kibble wrote:
crypto wrote:AR's dont need to be piston driven. Period.
Necessary...no...but still kinda cool. besides some x39 ammo can be dirty and if you plug that gas tube you got a flashy single shot.
Funny, that never seems to happen with steel-cased russian ammo in 5.56 ARs. Probably the 60,000PSI gasses running through the tube that keep it from happening. It's sure not gonna happen 1% of the time. A malf every 100 rounds or so is indicative of a Broke Gun.
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Re: ar or ak...?

Post by zombie_kibble » Sun Nov 11, 2012 10:44 pm

Doc Torr wrote:
zombie_kibble wrote:
crypto wrote:AR's dont need to be piston driven. Period.
Necessary...no...but still kinda cool. besides some x39 ammo can be dirty and if you plug that gas tube you got a flashy single shot.
Funny, that never seems to happen with steel-cased russian ammo in 5.56 ARs. Probably the 60,000PSI gasses running through the tube that keep it from happening. It's sure not gonna happen 1% of the time. A malf every 100 rounds or so is indicative of a Broke Gun.
Hard primers=broke gun...no
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Re: ar or ak...?

Post by MaconCJ7 » Sun Nov 11, 2012 10:49 pm

Military ammo uses hard primers, because of the floating firing pin. So no, it's not a primer issue, as they're made to shoot hard primers. It's something else that's wrong with it.
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Re: ar or ak...?

Post by zombie_kibble » Sun Nov 11, 2012 10:53 pm

MaconCJ7 wrote:Military ammo uses hard primers, because of the floating firing pin. So no, it's not a primer issue, as they're made to shoot hard primers. It's something else that's wrong with it.
i disagree, but if it blows up in my face I will come to your house and apologize in person for being an ass hat :D
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