The Belay Master 2 is a belay karabiner with a special plastic locking gate that clips across the biner. This prevents the biner from turning and eliminates cross-loading.
The plastic locking clip can only be locked if the screwgate is closed so further acts as a fail-safe for you forgetting to lock the screwgate.
The Plastic Saftey Guard is available as a spare
|DMM Belay Master 2 Karabiner|
|Closed Gate - 27kN||20mm||93g|
|Open Gate - 8kN|
|Minor Axis - 10kN|