HKP HK45C Railok™ Compensator - Black

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HK Parts Railok™ Mounting System Compensator: H&K HK45C

The HK Parts Railok™ mounting system compensator strikes a seamless balance of form and function.  Users will immediately notice the reduction in muzzle flip and recoil, getting you back on target quicker.  Utilizing our proprietary railok™ mounting systemlocking system, this compensator takes mere seconds to lock into the perfect position on the pistol’s picatinny rail.

HK Parts compensators are CNC machined in the US from billet aluminum and Cerakoted for a sleek, enduring finish.


  • Length: 4 3/4 inches
  • Height: 2 inches
  • Weight: 5.45 oz.
  • Crafted from aircraft-grade billet aluminum and finished in durable Cerakote.

DISCLAIMER: Improper installation of an HK Parts pistol compensator WILL result in damage to both the compensator and the firearm. It is imperative that our detailed instructions are systematically and carefully followed. HK Parts is not liable for any damage to the firearm or compensator in the event that our compensator was improperly installed. Please refer to the installation video in the link below and reach out to us if you have any questions or concerns about your installation. We are more than happy to help! 

IMPORTANT: For optimal performance, we recommend using 124 grain or heavier ammunition with 9mm compensators and 180 grain or heavier ammunition with .40 S&W compensators. 

***Railok Compensators are designed to fit tightly on your firearm's picatinny rail.  Please note that the installation and removal process may cause marring on the picatinny rails of newer firearms.***

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