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Colt
The Colt AR-15 upper receiver assembly in 5.56x45mm with a 16" barrel brings Colt's storied reputation for reliability to your rifle build or upgrade. Whether you're assembling a new AR from the ground up or swapping out your current upper, this Colt unit combines proven design with quality barrel work—button rifled and hard-chromed for durability and ease of maintenance. The 1/7 right-hand twist rate handles a wide range of 5.56 ammunition weights, making it a solid choice for tactical use, sport shooting, or general duty applications.
This is a complete upper receiver assembly, though you'll want to verify what components are included with your specific configuration. Colt offers these uppers with or without a charging handle, bolt carrier group (BCG), and rear backup sights, so check your order details to confirm what ships. If you're building from a stripped lower, you may need to source a few of those parts separately. The modular nature of AR platforms means you have flexibility to customize from here, but starting with a Colt upper gives you a strong foundation known for going into service without fuss.
Built for shooters and builders who want factory reliability without the premium price tag of a complete rifle, and for experienced AR owners looking to upgrade or rebuild. The chrome-lined bore means less frequent cleaning without sacrificing accuracy, and the button-rifled barrel holds tight tolerances out of the box. All NFA regulations apply if you plan any modifications or alterations to barrel length or configuration.
| Brand | Colt |
| Caliber | 5.56x45mm NATO |
| Barrel Length | 16" |
| Barrel Profile | Button rifled, chrome lined |
| Twist Rate | 1/7 right-hand |
| Component Type | Upper Receiver Assembly |
This is a complete upper assembly, but Colt offers configurations with or without a charging handle, bolt carrier group, and rear backup sights. Check your order details or contact us to confirm exactly what components ship with your specific unit. A stripped configuration does not include the BCG, charging handle, or rear backup sight.
Yes. This upper receiver assembly is designed to mate with any standard AR-15 lower receiver. It's a straightforward swap—no gunsmithing needed. Just make sure your lower is complete or ready to receive this upper.
A 1/7 right-hand twist is a versatile rate that handles a broad range of 5.56x45mm ammunition, from lighter practice rounds to heavier tactical loads. This twist rate is standard on many modern AR-15s and works well for general-purpose use.
This is listed as a complete upper receiver assembly. The term "stripped" refers to a configuration that lacks the bolt carrier group, charging handle, and rear backup sight. Verify your order to confirm which components are included, as Colt offers multiple configurations of this upper.
Colt
The Colt AR-15 upper receiver assembly in 5.56x45mm with a 16" barrel brings Colt's storied reputation for reliability to your rifle build or upgrade. Whether you're assembling a new AR from the ground up or swapping out your current upper, this Colt unit combines proven design with quality barrel work—button rifled and hard-chromed for durability and ease of maintenance. The 1/7 right-hand twist rate handles a wide range of 5.56 ammunition weights, making it a solid choice for tactical use, sport shooting, or general duty applications.
This is a complete upper receiver assembly, though you'll want to verify what components are included with your specific configuration. Colt offers these uppers with or without a charging handle, bolt carrier group (BCG), and rear backup sights, so check your order details to confirm what ships. If you're building from a stripped lower, you may need to source a few of those parts separately. The modular nature of AR platforms means you have flexibility to customize from here, but starting with a Colt upper gives you a strong foundation known for going into service without fuss.
Built for shooters and builders who want factory reliability without the premium price tag of a complete rifle, and for experienced AR owners looking to upgrade or rebuild. The chrome-lined bore means less frequent cleaning without sacrificing accuracy, and the button-rifled barrel holds tight tolerances out of the box. All NFA regulations apply if you plan any modifications or alterations to barrel length or configuration.
| Brand | Colt |
| Caliber | 5.56x45mm NATO |
| Barrel Length | 16" |
| Barrel Profile | Button rifled, chrome lined |
| Twist Rate | 1/7 right-hand |
| Component Type | Upper Receiver Assembly |
This is a complete upper assembly, but Colt offers configurations with or without a charging handle, bolt carrier group, and rear backup sights. Check your order details or contact us to confirm exactly what components ship with your specific unit. A stripped configuration does not include the BCG, charging handle, or rear backup sight.
Yes. This upper receiver assembly is designed to mate with any standard AR-15 lower receiver. It's a straightforward swap—no gunsmithing needed. Just make sure your lower is complete or ready to receive this upper.
A 1/7 right-hand twist is a versatile rate that handles a broad range of 5.56x45mm ammunition, from lighter practice rounds to heavier tactical loads. This twist rate is standard on many modern AR-15s and works well for general-purpose use.
This is listed as a complete upper receiver assembly. The term "stripped" refers to a configuration that lacks the bolt carrier group, charging handle, and rear backup sight. Verify your order to confirm which components are included, as Colt offers multiple configurations of this upper.
