SPF TO Ant2u
Ron Williams built this 16" 45DI upper for me. The barrel is a bull barrel/crowned. It has never been fired or even put on a lower. Comes complete with BCG and CH. All you need are some mags and you're ready to go.
$750 shipped, paid via money order. No trades wanted/considered.
Any discoloration in the pics are from oil spots and crappy cell phone pics.