Among the many pouches produced for the Osprey IV system was a small pouch to carry spare 9mm magazines for the service pistol. By this stage traditional holsters had been largely replaced by hard shell plastic designs so a soft holster was not part of the Mk IV complement of equipment, however extra magazines would be required to be carried so a set of dedicated pouches was clearly desirable. The pouch is made of an MTP printed fabric with a top flap that has a more open weave than many of the other pouches in the Osprey IV set:This change of fabric was presumably to give extra strength on a thin top flap that would otherwise be in danger of breaking if the more standard fabric had been used. The large top flap covers the base of the magazine and is secured with a large Velcro fastening to make it harder for the pouch to be accidently opened:The magazine itself slides inside to make a secure fit, but one that allows it to be easily withdrawn:The magazine used here is for a Browning Hi-Power, in service more modern magazines would have been carried, but this is the only double stack pistol magazine I have access to and illustrates the concept just fine.
A single MOLLE strap is fitted to the rear to allow the pouch to be secured to the vest:The weight of even a full pistol magazine is negligible so one strap would be more than adequate. Under the strap is the standard Osprey label, printed on fabric and sewn to the rear of the pouch:These pouches were not only used for carrying pistol magazines, but also occasionally saw service on operations to carry morphine syringes in a safe and secure pouch that allowed easy access in case of emergency. Although not what the designers had originally envisaged this sort of adaptation is typical of how soldiers use equipment when deployed on active service and this seems a very sensible secondary use for the pouch.