At Keres Dynamics, we recognize a number of customers were concerned with the military drop test results of the P320. While SIG addressed the issue with their upgrade program, we wanted to design our parts to be as light or lighter than the factory upgraded triggers but with the same strength and reliability. In our research, we came upon Tennalum® 7068-T6511 aluminum. Tennalum® gives our parts greater strength than 4130 chromoly steel, but with the lighter weight of aluminum. By comparison, Tennalum® is nearly 250% stronger than 6061 aluminum, but only 1/3 the weight of 4130 steel. This made Tennalum® an ideal choice to achieve our design and performance goals while maintaining the light weight necessary to meet or exceed the drop test standards placed on the P320® for service. Because of this material selection, we are able to manufacture a feature-rich trigger that is 1/2 the weight of the factory trigger, but just as strong.