my knex version features a modified ZLG trigger and a removable mag. The mag holds grey single slots. THe rest of the gun is built from the ground up. The trigger is also sliding like the real gun. Power isn't the best at around 15 feet using the mag. Without the mag (single shot from front) it shoots a good 35 feet. the power doesnt matter. it is built for looks. The mag also has groves for grip.