ABOUT COLT 6721 UPPER FOR SALE

Thanks, but when I'm going the DD MK18 route I believe I am going to commit the extra $20.00 and help Goal (but in addition shell out OH tax).   I did Examine the G&R web site and attempted to add the Colt uppers towards the cart and obtain the outside of stock information.Worn out rings. Tried out Colt customer service. They say it is actually ou