Spikes

Spike's Tactical Bolt Carrier Group, M16, Lightweight, HPT/MPI Bolt, Nickel Boron Finish ST5BG05

Complete Nickel Boron Plated M-16 BCG

Nickel Boron Coating Inside and Out (Bolt, Carrier, and Gas Key)

Laser Engraved with ST Spider logo

Mil Spec Carrier

• 8620 Tool Steel
• Full Auto M-16
• Holes for Reduced Weight (-1oz)


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Bolt

• 158 Carpenter Steel
• Shot Peened
• High Pressure Tested (HPT)
• Magnetic Particle Inspected (MPI)


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Mil Spec Extractor

• 8620 Tool Steel
• Nickel Boron Finish
• Extractor Spring
• Black Extractor Insert
• Viton O-Ring


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Mil Spec Gas Key

• 8620 Tool Steel
• Grade 8 Hardware
• Properly Staked


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Firing Pin with Hard Chrome Finish

Cam Pin Nickel Boron Finish

Retaining Pin

Weight: 10.5oz