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PolarStar UGS Tank Stock for 13/3000 | R3 G&P Stock (Black)
This PolarStar Universal Gas Stock 13ci Tank Stock allows you to retain the likeness and function of a traditional adjustable AR-15 stock, but houses a 13/3000 air tank so that your air is on board your rifle vs an external air rig setup. This stock is made by G&P for the R3 rifle set...
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