Spikes' Tactical Complete M-16 Bolt Carrier Group

Spikes Tactical Complete Phosphate M-16 BCG (ST5BG01) is a mil-spec correct Bolt Carrier Group.  This is a good thing.  This means that the Spike's BCG comports to the Technical Data Package that was set out as a standard by which the AR-15/M-16 should be assembled, it's a quality control measure.  Not reverse engineered, not a cheap import.  A Made in the USA, rock solid mil-spec carrier.  Granted, there are premium BCGs that do improve on this 70 year old design (LMT, Sionics, Centurion Arms), but a good mil-spec BCG is the best money you can spend on a BCG and not have any guesswork 

Complete Phosphate M-16 BCG

Phosphate 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
• Phosphate Finish
• Extractor Spring
• Black Extractor Insert
• Viton O-Ring

Mil Spec Gas Key

• 8620 Tool Steel
• Grade 8 Hardware
• Properly Staked
• Chrome Interior

Firing Pin with Hard Chrome Finish

Cam Pin Phosphate Finish

Retaining Pin

Weight: 11.6oz