Polymer construction ,Extreme durable.
Use to add up on your Magpul PTS MOE and CTR stocks.
Some AR's need a cheek riser to get proper cheekweld for raised scopes or rifles with raised rails.
Standard AR charging handles require a lot of travel, making it impossible to charge a rifle without moving a collapsible stock all the way to the rear.
This LaRue style tactical RISR solves these problems.
A Perfect Accessories for  Magpul PTS MOE and CTR stocks user.