M4 Carbine 223 Rem/5.56 16.1" BBL No Furniture No Sight

This Colt OEM Series platform receiver presents a flexible foundation for building customized 5.56 NATO rifles based on proven M4 architecture. The semi-automatic action features a chrome-lined 16.1-inch barrel with 1:7 twist rate and matte black finish paired with a muzzle brake. Overall length reaches 32 inches. The platform strips away handguards, buttstock, trigger guard, magazine, and rear sight, providing a clean slate for customization. The OEM configuration accepts most aftermarket drop-in handguards utilizing the factory barrel nut and retaining ring, making it ideal for dealers and consumers seeking to construct tailored carbines. Aluminum construction ensures durability. This factory-fresh receiver assembly arrives ready to integrate quality aftermarket components according to specific requirements and preferences.