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The Centurion Arms C4 Rail System is a 2 piece free float rail that, when installed, gives AR uppers a continuous 12 o'clock rail. Its features, some of which are patent pending, also include very light weight, integrated QD mount points, the ability to simply install onto a standard barrel nut, and design features that prevent the rail from loosening and rotating under prolonged stress. Several versions are available for multiple applications.


The PTS Centurion Arms C4 Rail Series are licensed airsoft replicas, designed for training and simulation use only. 



  • AR15 lightweight Rail System
  • Simple clamp design fixture directly onto standard AR15 barrel nuts
  • 2 built in QD sling swivel sockets
  • Free floating rail system to enhance accuracy



  • Dimensions – 235x62x53mm  (without packaging) 
  • Additional – Includes low profile gas block and gas tube
  • Compatibility – G&P M4 (AEG, GBB), KWA M4 (AEG, GBB, ERG), Systema M4


Disclaimer: This product is for airsoft, training, and simulation purposes only.  Utilizing Airsoft products improperly, including in real firearm applications, are potentially dangerous and may cause serious injury.  PTS will not accept any responsibility or liability for misuse of this product.

PTS Centurion Arms C4 Rail 9"

SKU: CA002490307