Had some problems with the pusher catching on the back of the darts in the mag and damaging them, so I did this. Works really well from what I see.
The instalisation instructions are shown on the photos. be careful not to remove too much from the front of the pusher because the air goes from the tube to the barrel through these holes. you need to remove ONLY THE BOTTOM HALF OF THE BREACH. This modification also requires the air restrictor to be removed.
The author marked this model as their own original creation.