Posted: Mar 14th 2010, 11:10 PM
Oh yea, I rock the Elcan SpecterDR on my M4 at work, I would get one for the home weapon but the wife isn't fond of the idea of dropping $1800 on an optic.
I've got the PRI Gasbuster on my home AR and it has the Adam's Arms Piston Refit on it. I've never had a problem with it. As long as the piston had been installed correctly with the spacers and as long as your gas key/block is installed straight there shouldn't be a problem. Either way I'm sure the mod your going with will work great, just letting you know about my experiences.