The Choate folding stock is lightweight and very compact. Great for hiking, backpacking, guiding, riding in a car, or storage in your home. When folded, they cut 12 inches off the total length of your rifle. The folding stocks are very ridged when extended and insure a stable shooting platform for your rifle. The housing and arms are cast out of a high quality steel and then machined and blued in our factory. The cast arms are then molded with nylon polymer and fitted with a recoil absorbing rubber butt pad. These stocks are hand assembled and quality checked to be straight when in the opened position and lock up in the open position. The springs, housing, arms, and stocks carry the Choate lifetime guarantee. NoteDoes not come with handguard. Will only fit Military versions of the M! and will not fit the universal model M1