No name is known as well as Colt when it comes to reliability, accuracy, and performance in an AR. For years, The United States Armed Forces have put their confidence in the Colt to help them accomplish any mission. Colt is where “mil-spec” truly begins. With its 16.1” chrome lined 1/7 twist rate barrel, the Colt LE6920-OEM1 semi-auto rifle can handle almost any ammunition selection and stabilize popular heavy loads. A true M16 Bolt Carrier Group with a properly staked gas key and shot peened bolt is included. Like its combat proven brother, the Colt LE6920-OEM1 includes the durable and adjustable post A2 front sight. The Colt LE6920-OEM1 semi-auto rifle shares all the same features as the LE6920 line but comes plain. The handguard, rear sight, stock, and trigger guard are not included…allowing you to put your hard earned dollars toward the rifle furniture YOU want.