M16 Bolt Carrier Group - 9310, SP4™

M16 Bolt Carrier Group - 9310, SP4™

Southern Ways LLC
$239.00
Current Stock:
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Description

SP4™ Extreme Wear Coating Technology is here! The Extreme Wear Coating technology, SP4™ is applied to the bolt carrier, bolt, firing pin, gas key, cam pin, extractor, and gas rings. This thin film has the thickness of three (3) microns and a hardness of 3,000 on the Vickers scale. SP4™ advanced surface engineering capability reduces friction, improves wear resistance, increases reliability and is corrosion resistant while extending the life cycle of critical components.

Our BCGs with SP4™ Extreme Wear Coating are Polished to a Mirror-Like Finish and are #1 in Hardness, #1 in Flexibility and Elasticity and #1 in Low Coefficient of Friction (.01)

  • M16 Style Chrome-lined Carrier
    • Machined from 8620 Steel
    • Properly Heat Treated to 60 HRC
    • Final Grind Before Plating
    • SP4™ Extreme Wear Coating
    • Full-Auto Carrier is Backward Compatible with All Semi-Auto Rifles
  • 5.56/.223 Bolt
    • Machined from 9310 Steel
    • Heat Treated
    • Shot Peened
    • MPI Tested (Magnetic Particle Inspection)
    • SP4™ Extreme Wear Coating
  • Billet Chrome-lined Gas Key
    • Machined from Solid Billet of 4130 Steel
    • Properly Seated with Grade 8 Fasteners
    • Properly Staked
    • SP4™ Extreme Wear Coating
  •  Cam Pin
    • Machined from 4140 Steel
    • Heat Treat
    • SP4™ Extreme Wear Coating
  •  Billet Extractor
    • Machined from Solid Billet of 4140 Steel
    • Heat Treated
    • Shot Peened
    • SP4™ Extreme Wear Coating
    • Extractor Insert Included
    • Viton O-Ring Included
  • Firing Pin
    • Machined from 8640 Steel
    • SP4™ Extreme Wear Coating
  • 100% American Made