Bear Creek Arsenal | 5.56 NATO Complete Upper | 16″ Barrel

This Bear Creek Arsenal complete upper is configured for the 5.56 NATO cartridge and ships as a 16″ barreled assembly with an included bolt carrier group and charging handle. The specification string indicates a 1:7 twist rate and a mid-length gas system with an M-LOK compatible handguard. It is intended for builders and shooters who need a ready-to-install AR‑15 upper for range use or varmint/target applications.

Product Specifications

• The manufacturer is Bear Creek Arsenal.
• The model designation is BEAR CREEK ARSENAL 5.56 NATO COMPLETE UPPER 16″ BRL 1:7 TWIST MID-LENGTH GAS MLOK W/ BCG & CHARGING.
• The caliber is listed as 5.56 NATO.
• The barrel measures 16 inches.
• The rifling twist is specified as 1:7.
• The gas system is described as mid-length.
• The handguard interface is M-LOK.
• The package includes a bolt carrier group (BCG) and a charging handle.
• The category is AR15 Uppers.
• The UPC is 756542288115.

This complete upper provides a practical, drop-in solution for builders and shooters seeking a factory-configured 16″ AR‑15 upper with a mid-length gas system and modern M-LOK handguard. Its combination of a 1:7 twist and 16″ barrel is suitable for stabilizing a range of commonly used projectiles and supports applications such as precision target work and varmint/field shooting. The included BCG and charging handle simplify installation.