Experience reliable performance with the Colt LE6921 AR15 upper receiver assembly, designed for precision and durability. Featuring a 14.5 inch cold hammer forged barrel chambered in 5.56 NATO, this upper offers enhanced accuracy and long service life for your AR15 build.

This upper includes a chrome-lined barrel with M4 feed ramps to ensure smooth feeding and increased barrel longevity. The flat top upper receiver is equipped with a Picatinny rail for easy mounting of optics and accessories. Additional features include a forward assist, brass deflector, and an A2 flash hider to help reduce muzzle flash. It utilizes a mil-spec direct impingement gas system for consistent semi-automatic cycling.

Ideal for AR15 enthusiasts looking to upgrade or complete their build, the Colt LE6921 upper combines rugged construction with proven performance. Its black matte finish and quality craftsmanship reflect Colt’s commitment to reliability and accuracy in every component.