Due to greatly increased demand, HPA and Air Systems are currently not available for direct purchase. Please see our DEALER LOCATOR for a list of authorized dealers which may have stock available for immediate shipment. We sincerely apologize for the inconvenience.

UGS™ Stock Rail
UGS™ Stock Rail
UGS™ Stock Rail
UGS™ Stock Rail

UGS™ Stock Rail

Regular price $35

The UGS stock rail provides indexing and length adjustment that the rail on a buffer tube would normally provide. By swapping between the different rails on your UGS you are able to reconfigure the stock for the use of Milspec CO2 inserts and Milspec stocks, or 2.000" diameter HPA tanks and 2.000" stocks such as the G&P R3 and similar stock used in paintball applications.

All UGS stocks for M4 models use the "Original" rails.
All UGS stocks for HK417 models use the "R01" rails.