Free Shipping on Orders Over $149 with Coupon Code: FREESHIP for lower 48 states in the U.S.*.  No in-store services, please stay in the car for curbside pickup. Call 562-287-8918, we will bring the items out for you.

Polarstar CGS - CO2 Gas Stock 12g (Type 1)

SKU: PS-CGS-T1-12G-RS In Stock Map ProtectedPrice is map protected. Coupon(s) may not be applied to this item.

  • Machined from a Milspec AR buffer tube blank
  • Compatible with Milspec AR stocks
  • Convertible between 12g and 33g cartridges through the use of interchangeable CO2 Inserts
  • Average shot count using an F2 at 1.5J w/ .28g and 6.05x380mm: 12g = ~180 shots, 33g = ~500 shots
  • Simple zip-tie lockout/tournament lock
  • Incorporates PolarStar's proven compact regulator design which uses only 2 o-rings, promoting reliability and ease of maintenance
  • Not compatible with Fusion Engine
  • CO2 Cartridges & HP Spring Not Included


In the Box

1x Gas Stock

1x Co2 Insert Castle Nut

1x Set of Hardware


Brand Polarstar
Minimum Output Pressure 40 psi
Maximum Output Pressure 130 psi
Max Input Pressure 900 psi
Outputs Interfaces w/ Airline (6mm OD x 4mm ID)

California Proposition 65 Warning: Cancer and Reproductive Harm -

Connect with us.