For sale, unsure of manufacturer, Believe its a Colt. M4 upper with colt 14.5 Socom barrel pinned and welded. Also included is KAC RAS. Barrel is brand new. Posting picture of upper receiver proof marks. Only other mark is M4 stamp on upper receiver. Also includes USGI BUIS. $500 plus shipping OBO. PayPal gift, text or email 814-490-2044.
https://i.imgur.com/BQcqffd.jpg
https://i.imgur.com/qDz2oNA.jpg
https://i.imgur.com/KfwMoXl.jpg
