Colt Firearms LE6920EPRII PRO Complete Upper Features The Colt Firearms LE6920EPRII PRO Complete Upper pairs a 16.1 inch threaded barrel with Colt s established manufacturing standards giving builders a drop-in option backed by one of the most recognized names in the AR-15 market. Chambered in 5.56 the barrel length strikes a practical balance between muzzle velocity retention and overall handling length for general purpose and duty-style use. Being threaded the barrel accepts standard muzzle devices compensators or suppressors giving the end user flexibility to configure the rifle for their specific application. Built to fit standard AR-15 and M4 pattern lower receivers this upper drops onto a wide range of existing builds without requiring custom fitting which makes it a straightforward way to refresh an aging upper or stand up a second configuration on a lower already on hand. Finished in matte black the upper carries a durable low-glare finish suited to both range use and more demanding field conditions. As a complete upper it arrives ready to pin onto a compatible lower saving builders the time and complexity of sourcing and assembling individual upper components such as the bolt carrier group charging handle and handguard separately. The flat-top receiver design is standard for mounting optics via a Picatinny rail giving shooters a direct path to adding a red dot or magnified optic without sourcing a separate base or riser. For AR-15 owners looking to upgrade or complete a build with a proven factory-built upper the Colt Firearms LE6920EPRII PRO is available for sale at GrabAGun for shooters who want Colt s own fit and finish without building an upper from individual parts. Colt Firearms LE6920EPRII PRO Complete Upper Specifications Manufacturer: Colt Firearms Model: LE6920EPRII PRO Complete Upper Caliber: 5.56 Compatible Hosts: AR-15 M4 Barrel Length: 16.1 Color: Black Finish: Matte Available At: GrabAGun