AR-15 .556 – 16" LENGTH 1:7 TWIST W/ 15" SLIM M-LOK Hand-guard NO Assembly Required With BCG and Charging Handle

This is a complete, ready-to-shoot 16″ AR-15 upper receiver assembly chambered in 5.56 NATO/.223 Remington. If you’re looking to build or upgrade your rifle without the hassle of sourcing and assembling individual components, this unit is for you. It comes fully assembled with a Bolt Carrier Group (BCG) and Charging Handle, so you can simply mate it with your AR-15 lower receiver and you’re ready for the range. This is a premium AR-15 part designed for reliability and performance right out of the box.

Key Features

• Complete, No-Assembly-Needed Upper: Includes a factory-assembled upper receiver, barrel, handguard, BCG, and charging handle.
• 16″ Barrel with 1:7 Twist Rate: Optimally stabilizes both lighter 55gr and heavier 77gr .223/5.56 ammunition for consistent accuracy.
• 15″ Slim M-LOK Handguard: Provides a full-length Picatinny top rail and a lightweight, slim-profile M-LOK interface for secure accessory mounting.
• Phosphate Bolt Carrier Group (BCG): Features a properly staked gas key and shot-peened Carpenter 158 steel bolt for proven durability.
• Mil-Spec Charging Handle: A standard, reliable charging handle is included for immediate function.

Built For

This upper is ideal for the shooter building their first AR-15 who wants a guaranteed, no-fuss setup. It’s also perfect for experienced owners seeking a reliable, high-quality spare upper or a straightforward upgrade to a free-float M-LOK system without specialized tools or gunsmithing.

Specifications

• Caliber: 5.56 NATO / .223 Remington
• Barrel: 16″ Length, 1:7 Twist Rate, likely 4150 Chrome Moly or similar steel
• Handguard: 15″ Slim M-LOK, Aluminum Alloy
• Finish: Matte Black Anodized (Receiver & Handguard), Phosphate (Barrel & BCG)
• Compatibility: Fits any standard Mil-Spec AR-15 lower receiver.

FAQ

Is the Bolt Carrier Group included?
Yes. This is a complete AR-15 upper assembly. It includes a phosphate Bolt Carrier Group (BCG) and a mil-spec charging handle, so no additional parts are needed to make it functional.

What lower receiver do I need for this upper?
This upper receiver will fit perfectly on any standard, Mil-Spec AR-15 lower receiver. Simply push the rear takedown pin into place, and your rifle is assembled.