Spikes Tactical ST5BG03 Bolt Carrier Group 5.56 M-16 w/HPT/MPI Bolt - Nickel Boron Finish - ST5BG03

Save 10 % MSRP: $149.95 $134.96

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Your Bolt Carrier Group is one of the most critical parts of your build. Don’t buy an imitation. This is the same BCG we use on our builds.

Complete Phosphate M-16 BCG

Phosphate and 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

Mil Spec Bolt

• 158 Carpenter Steel or 9310 Depending on Supply
• Shot Peened
• High Pressure Tested (HPT)
• Magnetic Particle Inspected (MPI)

Mil Spec Extractor

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

Mil Spec Gas Key

• 8620 Tool Steel
• Grade 8 Hardware
• Properly Staked
• Firing Pin with Hard Chrome Finish
• Cam Pin Phosphate and Nickel Boron Finish
• Retaining Pin
• Weight: 11.6oz

Compliance

NFA (National Firearms Act) compliance is crucial for legal ownership and transfer of regulated firearms and accessories like short-barreled rifles, suppressors, and certain types of ammunition, ensuring adherence to federal regulations to avoid legal penalties and ensure responsible firearm ownership.

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