Colt M4 5.56 NATO Complete Upper with Matech BUIS

Enhance your rifle with the legendary reliability of the Colt M4 5.56 NATO complete upper receiver. This upper features a 16-inch barrel and comes equipped with Matech Back-Up Iron Sights (BUIS), providing versatility and precision for various shooting scenarios. The black finish adds a sleek look, making it a great addition to any build or upgrade.

Key Features

• 16-inch barrel chambered in 5.56 NATO
• Includes Matech Back-Up Iron Sights (BUIS)
• Durable black finish

With Colt's proven performance, this upper receiver is designed to deliver exceptional accuracy and reliability. Available from ICB Firearms, where we offer fast nationwide shipping and local pickup in Saint Clair Shores, Michigan.