Convert your Ruger (.22 Long Rifle) 10-22 into an Archangel (ARS) Rifle (Advanced Rimfire System) * Length of pull is adjustable on demand by turning the adjustment wheel located at the butt of the stock * Fore arm mounted standard sling swivel stud accept Harris type and ProMag bipods; a second swivel stud is located on the butt stock * Manufactured entirely from mil-spec battle proven Black polymer * Stock is equipped with four recessed hard points that accept quick detach push button military sling swivels