The trigger 5097 D on the 1770 model has an adjustment range of 1000 - 2000 g and is set to 1200 g at the factory.
By exchanging the adjustment spring with the spring from trigger 5098 (no. 002946), an adjustable trigger weight of approx. 450 - 700 g can be achieved.
ATTENTION: Modification only permitted by an authorised gunsmith .