Heavy-duty design allows loading hundreds of magazines daily ! Painless, quick, comfortable operation. Allows examination and cleaning of rounds prior to loading. Single-stroke loading action. Eliminates wear on feed lips; prolongs mag. life. No maintenance or training required. Durable reinforced polymer. Portable, Range Bag Packable; length 42cm (16.5"), weight 375gr (13.2 oz.) Mfg: Maglula Ltd. SPECS: Fits: All AR15 / M4 compatible 5.56 NATO / .223 mags.: USGI Aluminum (NATO STANAG 4179). Polymer mags (PMAG and all others). HK416 / SA80 steel mags. Loads loose / bulk rounds. Does not load blank rounds.