RRA's new piston guns

[AR-10]

RRA may have changed my mind about piston guns with this little side folder carbine:

http://www.rockriverarms.com/index.cfm?fuseaction=category.display&category_id=442

Looks like the top rail is taller than a standard AR which is no biggie, I'd like to see pics of the internals.

Here's the pistol version:

http://www.rockriverarms.com/index.cfm?fuseaction=category.display&category_id=441

[Paulo_Santos]

They look pretty cool. Don't like the barrels too much though.

[AR-10]

Agreed!

I wasn't thrilled when I read they were 1:9 either.

I'm still curious about them, and I'd like to see an upper stripped down.