UGS™ Stock Rail FCU and inside

and inside

F1 and JACK and is intended for use with our specific Ares Amoeba wire harness (part# 1000304)

20g 340fps - 390fps w/

the REV3 FCU is compact enough to fit into a M4's buffer tube along with a small 300mAh Lipo pack

THAT'S RIGHT

UGS™ Stock Rail FCU and insideThe 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