Abstract: Method of fabricating a dummy practice ammunition round to dynamically match behavior of an existing live ammunition round during manually cycling of the action, or other demonstration. A dummy practice ammunition round of identical contour is formed, having a center of gravity (mass) in the same position as on the existing live ammunition round. Weight is matched by removing or omitting material through coring into the case head of the round or by hollowing it out.

Abstract: An adjustable buttstock assembly for a hand carried weapons, wherein an inner stock extends from and slidably moves into an outer stock to provide the length adjustment and where a set of opposed spring loaded engagement pins, located in the end of the inner stock, extend through a set of discrete, opposed openings in the outer stock to securely hold the stocks in position one relative to the other. One of the engagement pins, engages into one of a series of discrete holes located in the lower side of the outer stock, while the other engages into one of a series of partial oval opening, opposed thereto, the series of partial oval openings located on the upper side of the outer stock separated by flat teeth, to form a rack, with each partial oval opening into an open channel running the length of the rack.