I have a very nice 601 upper to sell. It is complete w/ barrel, hg's, BCG etc.
601 upper, Colt proofed in front of ejection port. No forward assit.
1/12 twist barrel. C MP marked.
A1 flash hider.
used triangle hg's.
Colt BCG...This is a Colt 1/2 circle carrier and Colt bolt.
Overall condition is very good to excellent. It has the black arsenal refinish. Bore looks excellent. Shoots great.
$425 plus shipping.
EDIT>>I was wrong..
Upper is a 604
NOW $425 SHIPPED!!!!!!!!!!!
Gene...Thanks!...it's a small hole.