Spike's Tactical M16 Bolt Carrier Group, Black Phosphate Mil-Spec 8620/Carpenter 158, ST5BG01

Product Description

The Spike's Tactical M16 Bolt Carrier Group (BCG) is a mil-spec, phosphate-finished upgrade built for reliable cycling and long service life in AR-platform rifles. Featuring a phosphate coating inside and out and a laser-engraved ST spider logo, this BCG is designed to deliver factory-rifle performance with durable materials and quality control suited for hard use builds.

Product Highlights

• Phosphate coating inside and out for corrosion resistance and durability
• Mil-spec M16-pattern carrier with shrouded firing pin design
• CNC-machined bolt made from Carpenter 158 steel (per supplementary specs)
• Individually High Pressure Tested (HPT) and Magnetic Particle Inspected (MPI) bolt (per supplementary specs)
• Laser engraved with the Spike’s Tactical ST spider logo for authenticity

Specs

• Brand: Spike's Tactical
• Product Type: Bolt Carrier Group (M16 pattern)
• Finish/Coating: Phosphate / Black Phosphate (phosphate coating inside and out)
• Carrier Material: 8620 tool steel (per supplementary specs)
• Bolt Material: Carpenter 158 steel (per supplementary specs)
• Compatibility: AR-15 / M16 / M4 platforms (commonly used for .223 Remington / 5.56 NATO setups; per supplementary listing data)
• Manufacturer Part Number: ST5BG01
• UPC: 855319005495

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