Different grenades have different weights. Different weights of grenades require
different spring tension of the cylinder. The spring tension of the cylinder is designed
to be adjustable. Players can adjust the spring tension to get different revolving
strength according to different weights of grenades.
♦When the spring tension is not enough to turn the cylinder, you can loosen the screw;
tighten the screw in the next hole clockwise.
♦When the spring tension is too strong, you can loosen the screw; tighten the screw in
the next hole counterclockwise.