Facebook might hate freedom, but it's still going strong here.
I've got a bad feeling about this.
Be s-systems work very well for stock guns, but the weakest link on them that i have encountered is the plastic. I have had one break by the rear body pin. I forgot what brand it was, either a jg or tm.
I believe (could be wrong) that the A&K is a TM clone and uses the proprietary upper receiver. If that's the case, I'd definitely avoid it. You'd be better off picking up an ICS Sportline or Combat Machine and a separate SIR rail for it.