ST3 NP3+ Coated AR Bolt Carrier
SPEED TAC

ST3 – NP3® Coated

$159.95

The ST3 features NP3+ (Electroless Nickel / PTFE with a High Phosphorus Electroless Nickel undercoat) applied by industry leader Coating Technologies.

  • 0.1 coefficient of friction
  • Up to 500 hours salt spray resistance
  • Self-lubricating Nickel / PTFE composite coating
  • Thin, uniform electroless deposition across complex geometry
  • Enhanced corrosion protection and wear resistance
BUY ST3 – NP3+
ST2 Black Nitride Coated AR Bolt Carrier
SPEED TAC

ST2 – Black Nitride Coated

$129.95

The ST2 is coated using H&M Blacknitride™. A thermochemical treatment process that hardens the steel surface and increases durability.

  • Surface hardened through thermochemical treatment
  • Increased strength and wear resistance
  • Improved corrosion protection
  • Easier cleaning and maintenance
  • Enhanced lubricity compared to untreated steel
BUY ST2 – NITRIDE