Sold Out Quick view Colt Colt Black LE6960-CCU Upper Receiver 5.56 NATO M-LOK Handguard $659.99 The LE6960-CCU Upper Receiver which is the same as found on the Colt LE6960-CCU, or Colt Combat Unit Carbine AR-15. Designed with direct input from veteran trainers Mike Pannone, Daryl Holland, and... Out of Stock Out of Stock Add to Wish List Add to My Wish List Create New Wish List