Springfield Armory's Tactical M1A is the M21 Long Range Match rifles with either a Douglas Barrel or a Krieger Barrel. The Tactical M1A has an adjustable walnut stock that is designed to allow the shooter to use an optic on the rifle with an adjustable cheek piece. The rear-lugged action is glass bedded into the stock and has the heaviest profile barrel that can fit into an M1A. The Tactical M1A has a National Match recoil spring guide, match tuned gas cylinder, 4.5-5lb two-stage trigger, match grade hooded aperture rear sight with 1/2 MOA adjustments, and National Match blade front sight.