The Ten-Speed Pistol Mag Pouch holds one single or double stack magazine and is the perfect blend of speed and security. Ten-Speed(R) pouches use military grade elastic combined with ULTRAcomp to create a multiuse pouch that is weighs almost nothing and lays flat when not in use. The Single Pistol Mag Pouch holds one single or double stack pistol magazine up to an HK 45, multitool, light, knives, small OC spray, or other similar sized items.