Wilson Combat M16 Bolt Carrier Assembly 5.56 NATO

Description

The Wilson Combat M16 Bolt Carrier Assembly is a complete bolt carrier group intended for AR-15/M16 platforms chambered for .223 Rem / 5.56 NATO. The bolt is precision machined from Carpenter 158 and shot peened for increased strength, and the assembly includes a tool steel extractor and ejector with the appropriate extractor spring. The carrier is 8620 steel, parkerized externally and chrome lined internally, and features a Mil-Spec gas key that is chrome lined, phosphated, heat treated, secured with Grade 8 fasteners and staked during final inspection.

Key Specifications

• Compatible with .223 Rem / 5.56 NATO.
• Bolt material is Carpenter 158 steel, precision machined and shot peened.
• Extractor material is 4140 gun-quality steel, annealed and cold drawn.
• Carrier material is 8620 steel with external parkerizing and internal chrome lining.
• Gas key is chrome-lined, phosphated, and heat treated to Mil-Spec standards.
• Finish is manganese phosphate (black).
• Fasteners are Grade 8 and the gas key is staked during final inspection.
• Random batch HPT (High Pressure Tested) is performed on bolts.
• Product type is a Bolt Carrier Group for AR-15/M16 platforms.

As a complete spare or replacement BCG, this Wilson Combat assembly emphasizes durable materials and Mil-Spec assembly practices to support consistent gas-system function and long-term service. Its combination of Carpenter 158 bolt construction, chrome-lined carrier surfaces, and secure gas-key installation makes it a practical choice for routine maintenance, parts kits, or field-ready replacements.