Brownells has paired up the Daniel Defense MK18 RIII(TM) AR15 style Upper Receiver Group with your choice of EOTech Red Dot EXPS2-0 or EXPS3-0. Adding to their extremely successful line of stripped MK18 Daniel Defense uppers, Daniel Defense now has the stripped MK18 upper with their RIII rail! The MK18 RIII(TM) AR15 style Upper Receiver Group is unmatched in size, weight, and performance, and is built around a 10.3 inch Cold Hammer Forged M4 Profile barrel and a carbine length gas system. It features a 9.5 inch lightweight RIS III rail-modeled after the revolutionary RIS II two-piece handguard developed for SOCOM- which features M-LOK attachment for lighter weight. Mfg: Brownells Bundles