Rubber sleeves slip over magazines to provide a finger loop and non-slip grip for fast magazine changes. Slip-on fit, no gunsmithing required. Package of 3. Notes:Installs by stretching over the base of the magazine, providing a finger loop for fast magazine changes and a rough gripping surface. MagPul is removable and reusable.Finger loop will fold over for use in most magazine pouches, however there may not be enough clearance with a tight-fitting pouch cover. MagPul was designed for use with the standard military issue pouches rather than concealment-type pouchesCompatible with 5.56 NATO (223 Rem) - US GI AR-15 20 round and 30 round, Steyr AUG, Thermold, Orlite, HK 53, Galil (5.56), Sig 550 (with modification)