ARC Division Reactor 365s


  • Compatibility: P365 3.1″
  • Material: 416 stainless (HRC 39-41) Black Nitride Coating
  • RED DOT COMPATIBILITY: Shield Arms RMS Series optics (RMS, RMSc, RMSw, and SMS) Holosun 507K
  • Barrel
  • Handgun Type: 3.1″ P365
  • Barrel Caliber: 9mm
  • Barrel Profile: Ported Reactor Barrel
  • Barrel Material: 4150/Black Nitride Coating
  • Barrel Finish: Black Nitride
  • Barrel Twist: 1:10
  • Crown: 11-degree Target Crown
  • Rifling Method: Button Rifled, Fully Stress Relieved
  • Rifling Type: Conventional
  • Made in the USA

Only 1 left in stock



Arc Divisions integrally ported slide and barrel builder kit for Standard P365 (3.1″ barrel variant).

The kit include a slide, barrel, and optic cut cover plate.

Internal parts kits are not included.

Barrels are Black Nitride only.

Compatible with factory and aftermarket kits.


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