Luth-AR MCA-22 Chassis Stock is designed for Ruger 10/22 and similar .22 LR actions and barrels (excludes takedown models). Constructed from high-strength glass-filled nylon, 6061 aluminum, and steel in black. Fully ambidextrous with goose-neck pistol grip, palm swell, and aggressive grip texturing. Features click-adjustable cheek piece (front/back .750, up/down 2), adjustable length of pull (11.25-15.75 in .75 increments), and 1 vertical buttpad adjustment. Foregrip includes 5-slot M-LOK compatibility, removable taper barrel insert, and pre-drilled sling stud locator hole (tap 10-32 required). Chassis only; action and barrel not included. Safety note Follow all manufacturer installation instructions. Verify proper function and secure mounting before use. Comply with local firearm laws and regulations.