Windicator Natural Aluminium.

Available for:-
14mm barrels eg EV2, S400 MPR.
15mm barrels eg S200.
16mm barrels eg Steyr LG110.
Daystate 22mm shrouded barrels. ( Does not fit 24mm shrouds)
S400 31.5mm cylinder mounting.
33.3mm eg Walther Dominator
34.8mm eg Steyr