Your rifle should be essentialy a Mauser action with a bit of difference.The bolt stop is a thin piece of metal lying in a groove in the left underside of the bridge.It is tensioned and held in place by a flat spring screwed into the reciever with the bolt stop also pivoting on this screw.There is a serrated button extending out of the left lower end of the reciever,Push it and the bolt will come out.The trigger is not used to remove the bolt unless it has been modified.


Ken