As the title states, anyone know of any aftermarket rear sight drums that were engineered so that the wind age or elevation can be adjusted without the use of that ridiculous tool?

Hello folks, so I just got my VP9 about 2 weeks ago now. I notice when putting the slide back on, it gets stuck at the rear unless I press downwards. (See Video). Is this normal? This is my first HK, so I'm a noob. lol.

XS Front & Rear Night Sight System - HK - $137.95 XS Sight Systems HK MP5 Rear Receiver Section - $24.95 Heckler & Koch Rear Sight Sets Complete All 7 pieces - MP5 New - $119.95 Heckler & Koch Rear Sight Sets Complete - Windage Knob - MP5 - $124.95 Heckler & Koch Trijicon Front Night...

Forgive me if this has been addressed. On page 14 of the SP5K owners manual it is stated that a counter-clockwise, one click adjustment will change POI .55" at aprox 25m AND a clockwise one click adjustment will change POI 2.76" at 25m. How can the direction of rotation impart a different...