Colt M4 Le6933 11.5in Upper Stripped Ar-15 1/7 1/2-28 5.56 Nato

The Colt M4 LE6933 Upper Group 11.5'' Stripped delivers a ready-for-build AR-15 upper receiver solution with factory precision and rugged reliability, featuring a 11.5-inch carbine-length contour, 1/7 twist, and a 1/2-28 muzzle threading that accommodates a wide range of 5.56x45mm NATO setups. This anodized black upper is designed for seamless compatibility with AR-15 platforms, offering a stripped configuration that lets shooters tailor their build with preferred handguards, barrels, and components while maintaining Colt's reputation for durability and consistent dimensioning. The M4 5.56 upper receiver groups are built to support reliable cycling and accuracy in tactical and range scenarios, enabling fast target transitions and versatile field use with standard carbine-length gas systems. With its robust build and precise machining, the upper provides a solid foundation for duty-ready or enthusiast builds, allowing end users to pair it with trusted Colt parts for enhanced performance. Ideal for builders seeking a dependable core component for 5.56—45mm NATO applications, this upper helps shooters achieve a balanced combination of weight savings, modularity, and enduring value in their AR-15 configurations.