UGS™ Stock Rail Model:HPA (2.000") Diameter, Original 20g 355fps - 415fps w/

20g 355fps - 415fps w/

This is an OEM replacement in the event yours gets taken by the workbench gremlins

S M L XL 2XL Chest to Fit (inches) 34-37 38-41 42-45 46-49 50-53 Body Length (inches) 26 ⅜ 27 ½ 28 ⅝ 29 ¾ 30 ⅞ Chest Width (inches) 19 ½ 21 ½ 23 ½ 25 ½ 27 ½

and air-seal

*Please note that only traditional Milspec buttstocks can be used with the CO2 inserts

UGS™ Stock Rail Model:HPA (2.000") Diameter, Original 20g 355fps - 415fps w/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