The magazine clamps hold two AR-15 / Mini-14 steel or aluminum magazines side-by-side for quick reloading. The clamps position the magazines and the loaded ammunition pointing in the same direction. This four-pack will jungle clip two pairs of magazines for ready use. Two magazine clamps are required to clamp two steel or aluminum AR-15/Mini-14 magazines. Injection molded from a Zytel-based glass-filled black polymer. All hardware included. No permanent modification required. Made in U.S.A.