What they say must be true, I still don't see those screws. Just to make sure this is what I see. In the left grip, where the LCD is visible, there is a notch cut out towards the top back at the curve. The notch is about 1/8 in in diameter. I assume that this is where the lock screw would set, there is just solid metal behind it. On the back, where the on/off and set buttons are, there is no screws of any type.