The Colt M4 Socom Upper Group 14.5in Stripped is a genuine AR-15 upper receiver assembly built around Colt’s proven 5.56x45 NATO SOCOM-profile barrel. This complete upper features a flat-top receiver for easy optic mounting, a classic polymer handguard, and a pinned front sight gas block that mirrors the configuration found on military M4A1 rifles. The 14.5-inch barrel uses a 1:7 twist and 1/2-28 threaded muzzle, giving shooters reliable performance with a wide range of modern 5.56 NATO loads.

This upper is ideal for enthusiasts who want to build a dependable carbine for training, range work, or general-purpose use while retaining the familiar feel of the M4 platform. Its stripped configuration—without rear sight, bolt carrier group, or charging handle—lets you choose your preferred components to finish the build exactly how you like. With Colt’s long-standing reputation for consistency and durability, this M4 Socom upper provides a solid foundation for a refined and trustworthy AR-15.

• Manufacturer: Colt
• Model: M4 Socom Upper Group 14.5in Stripped
• Caliber: 5.56x45 NATO
• Barrel Length: 14.50"
• Twist Rate: 1:7
• Receiver Style: Flat-Top AR-15 Upper
• Muzzle Thread: 1/2-28