Posted on April 20 2020
1. We place the metal ring (only one) in the way that is shown in the above photos (Fig.1 & Fig.2)
2. We place the system but it can not pass trough the ring , so we have to press the back side of the recoil system to lock on the barrel (Fig.3)
3. Finally we move it softly round to help the recoil road pass through the ring (Fig.4)
