half and full versions) and arm protectors (consisting of brassards and shoulder guards), each with their own soft armour fillers, provide further protection; an Osprey vest thus configured is referred to as 'Complete Fighting Order', but normally the vest is worn in 'Light Fighting Order' without the addition of collar and arm protection. The armour system is not currently issued to personnel stationed in the UK, and instead retained in theatre and issued to troops during inward processing. Training is undertaken using earlier versions of Osprey. Accessories The Osprey Body Armour is complemented by the Under Body Armour Combat Shirt (UBACS), but can be worn over the CS95 and PCS jacket. The UBACS torso is made of wicking CoolMax fabric with soft protection in the shoulders and sleeves. The pouch system consists of a range of accessories that can be fitted to the vest, allowing an easily configurable load carrying capability that can be tailored to the needs of the individual user. This includes a range of magazine, machine gun link, hand grenade, and 40x46mm pouches as well as utility pouches and medical packs. These accessories are mounted using the PALS tape and can also be fitted to any other equipment with this arrangement, such as the issued MTP 45 litre patrol daysack [NSN: 8465-99-213-3777]. Soldiers were discouraged from carrying items such as bayonets, pens, or cyalume torches on the front of the Osprey vest in order to prevent facial injury in the event of a blast. The combined weight of the Osprey vest, the body armour carried within the vest, and pouches attached to the vest meant that some wearers went back to using the earlier PLCE webbing. Variants Mk 1 Large ballistic plates at the front and back with the assembly as described, offering significant improvements over the protection offered by the preceding Enhanced Combat Body Armour. Mk 2 This version was first issued in 2007. The vest was improved by the use of modified pouches, a drop sling attachment on the shoulder to support an L85A2 rifle in lieu of the standard L85A2 sling, and improved construction quality. The press studs were modified so that they could only be undone in one direction (as opposed to the multi-directional studs of the Mk 1 vest). A waist cummerbund belt was introduced to improve the fit and comfort of the vest. This version also saw the introduction of separately