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Rainier Arms was started by shooting enthusiasts for shooting enthusiasts. Specializing in high end AR15s/M16s, parts & accessories, their motto was: "If we won't use it, we won't sell it." Founded in 2005, Rainier Arms was established (and continues to this day) as a firearms and parts supplier. As time passed, they had a desire for products made a certain way and knew that the only way to make that possible was to make those products themselves. And as evidenced by the popularity of their own products they're off to a good start. PTS is proud to be the exclusive licensee for all airsoft replicas based on Rainier Arms' products. 



  • Lower receiver only
  • Weight – 240g
  • Material – 6061 aluminium
  • Dimensions – 205x100x85mm (packaged) 
  • Colour – black


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 Rainier Arms Lower Receiver (For Systema PTW)

SKU: RA011490300