Easy to install, light weight chassis; Designed for comfort and ergonomic control for wide range of body types; Constructed with high-strength glass filled nylon, 6061 aluminum and steel; Ambidextrous gooseneck-style pistol grip and palm swell; Click-adjustable cheek piece / front and back .750" / up and down 2" (+1"/-1" from bore center); Aggressive grip panel and front grip strap texturing; Length of pull adjustability from 11.25" to 15.75" in .75" increments; 5-slot M-LOK compatible foregrip bottom with 1 M-LOK slot on both sides of foregrip; Removable taper barrel foregrip insert to accommodate bull barrels