Quote:
Originally Posted by kos
I was going to get a reinforced upper, but there's no need on a PTW. I'm saving that for my RRA
Whenever that shit gets cleared, that is... 
|
I gained 15 fps going from stock to a reinforced, forged Sun Devil Mfg. upper. And consistancy went from 5-7 fps to about 2. Nothing else was changed.
Ohers have reported similar gains.