Originally Posted by
georgeib
PWS recommended cleaning interval for the gas system, involving the 30 second pulling of the handguard, is every 5000 rounds. Yep, 5000! So for all practical purposes, that's as close to "don't have to clean it" as you're ever going to get.
I understand preferring DI over piston, and reasons behind it. I only own a single piston AR, the PWS mk1 mod 2, among all my DI guns. But I do find it strange that you'd be so butt hurt about someone wanting a piston gun... No where did the OP solicit opinions as to whether he should or shouldn't get a piston upper, in fact he seems pretty clear that he wants to know WHICH one to get. This begs the question in my mind why you're so angry about this.
You don't like pistons? Great. Move on dude... It's really not that big a deal, is it?