I like the look of the Duostock but seems like its a collapsible only affair. Since i'd have to pin it, i'm wondering if there's anything else out there that fixed with a similar notched bottom that you can hold high on the shoulder?

 

can you please explain the use of this.. that is one odd looking thing..

can you please explain the use of this.. that is one odd looking thing..

 

Its a stock that allows the operator to switch from a longer or shorter LOP without having to collapse. its really for individuals who wear body armor, but i do agree it is odd looking.

Primarily, it allows the rifle to be held high up on the shoulder for ease and comfort of using the optics when standing. With the "notch" you can have the rifle ride half off your shoulder rather than tucked way down. this allows you to keep your head at its normal attitude without having to scrunch down on the rifle to us your sights. .223 is so tame that you dont need to shoulder it like a bigger gun to stabilize it.