Finally got hold of my RA-Tech custom M16A1.
First impressions are im pretty stoked with it. The kick is awesome and the cool down isn't too bad really.
The only thing i noticed is the hammer has to come right back to trip the valve locker. So far back that it doesn't trip sometimes when i pull the charging handle. Won't be a hard fix, but a bit odd.
Other wise im really happy with it so far. Need to pay it off and get it into the field/buy the steel carrier when its released