I have a Chiappa upper. I originally had doubts about the plastic upper, but it ran like a train with a variety of mags and ammo, and is accurate.
$300 buys one. Add one of the $120 plastic complete lowers and you have a superlight .22 AR for under $450.
$300 buys one. Add one of the $120 plastic complete lowers and you have a superlight .22 AR for under $450.