The Advanced Technology Int. Strike force Mini-14/Thirty Stock fits all Ruger(R) Mini-14(R) Rifles with a Serial Number 181 and Above and also fits all Ruger Mini Thirty(R) Rifles (Must remove small amount of material around the mag-well). It is an Adjustable Side-Folding TactLite Stock. The side folds to the left of the receiver and can be fired from a folded position. The TracLock System eliminates horizontal and vertical movement of the stock on the buffer tube. Its removable/adjustable cheek rest system is an elongated design to fit all users and it includes a short cheek rest with 1/2″ of adjustment. The X Series Thin Recoil Pad is non-slip and removable and the X1 Style Pistol Grip has a Sure-Grip texture. There are four forward Picatinny Rail locations: One 7″ Picatinny Top Rail” Two 2″ Picatinny Rails and One 2″ Swivel Stud Picatinny Rail with blank covers for when rails are not in use. There is additional ventilation in forend and top cover” slot for a tactical sling attachment and two sling swivel studs. Made in USA.