Polarstar UGS Type 1 12g CO2 Milspec RS Spec Stock, Black

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Dominate the airsoft battlefield with the revolutionary Polarstar UGS Type 1 12g CO2 Milspec RS Spec Stock—an essential upgrade for serious players. Designed for seamless integration with a wide range of HPA cylinder systems including F2, F1, Jack, and Kythera, this black milspec stock is an epitome of Polarstar’s commitment to high-quality, high-performance airsoft accessories.

The Polarstar UGS Type 1 is engineered to work efficiently with 12g CO2 cartridges, providing a compact yet powerful alternative to traditional air tanks. It features a robust minimum output pressure of 40 PSI, scaling up to a fierce 130 PSI maximum. Such a range allows for customization to suit various playstyles, from sharpshooters to frontline riflemen.

With a maximum input pressure of 900 PSI, it is compatible with standard and SLP HPA tanks, offering flexibility for different airsoft engagements. The stock's outputs are designed to interface with an airline measuring 6mm outer diameter by 4mm inner diameter, ensuring a snug, reliable connection for consistent power delivery.

Polarstar's innovation extends to the stock's user-friendly features, including a straightforward zip-tie lockout for tournament play and minimal internal components to reduce maintenance woes. Its reliance on just two o-rings not only simplifies servicing but also minimizes potential failures, providing a dependable system you can trust in the heat of battle.

This UGS stock maintains the traditional aesthetics and adjustability of a standard AR-15 stock, blending in with your airsoft rifle's profile while offering unmatched performance enhancements. Whether you're gearing up for a casual weekend game or a competitive event, the Polarstar UGS Type 1 12g CO2 Milspec RS Spec Stock is your ticket to a superior airsoft experience. Get yours today at Airsoft Station and elevate your game to the next level.


  • HPA system performance in a traditional AR-15 adjustable stock form
  • Compact design with high-performance matching larger systems
  • Accepts up to 900 PSI for versatility with standard and SLP HPA tanks
  • Fits standard 2-inch diameter HPA tanks
  • Features a simple zip-tie lockout for tournament play
  • Reliability enhanced with a 2 o-ring system for easy maintenance
  • Not suitable for use with Fusion Engine
F2, F1, Jack, Kythera and other similar HPA cylinder systems
Package Includes:
1x Stock Rail, 1x CO2 Insert
30 Day Return & Warranty

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