The stirrup of the AR-6 Stinger II Survival incl. thumb screw The stirrup you know from our AR-6 Stinger II Survival is now available separately. Note: The stirrup will not fit the AR-6 Stinger II Tactical or Compact without rework. We also explicitly do not recommend the use of the stirrup on these models. When used with a magazine crossbow, the risk of injury during manual cocking is too high because of the missing lock!