Bolt, Lee-Enfield No. 5 Mk. I SN CC0408 from Rifle, Lee-Enfield No. 5 Mk. I Commonly called "Jungle Carbine" SN CC0408 made in 1945. Calibre: .303 British There were predecessors such as the No. 4 Mk 1 Lightened, as well successors, such as the No. 5 Mk 2, Canadian Light rifles as well as an Australian version, the No. 6 Mk I and Mk I /I. Unfortunately these rifles may total an entire production of 1500, where as the No5 Mk1 totaled around 250,000 alone. The trials for this type of rifle started in the early summer of 1943. Is was becoming abundantly clear to the British Forces that a light weight rifle was required for jungle fighting with good accuracy of 400 yards. It was also later to be used by British parachute units in World War II, as it was the ideal sized rifle for that role. During the early stages of the initial trials there was concern that the reduction in barrel length would result in a corresponding increase in muzzle flash. Fortunatly however the early trials showed the flash hider worked well and overall, the flash from the rifle was none the worse from that of a No4 being used in the same trial. To offset the kick from the reduced weight of the rifle it was fitted with a rubberised butt plate. This along with its famous flash hider became somewhat the iconic pieces of the No. 5. The No. 5 began production in 1944 and they were made either at the Royal Ordinance Factory in Fazakerley, Liverpool, or by the Birmingham Small Arms Company, Shirley. The easiest way to tell which one is to look at the left hand side of the receiver and see what is engraved there. If it looks along the lines of ROF (F) then Fazakerley, if it has M47C then the rifle was made by Birmingham Small Arms . Indication may also be on the wrist of the rifle. The No. 5 Mk 1 was basically a shorter and lighter version of the No. 4. Besides the obvious differences, that being the shorter barrel length and a flash hider on the No. 5, there are a few other subtle differences that differentiated them. The woodwork is different! but also the rear sight is only graduated to 800 Yards and the bolt is hollowed out in the bolt handle (however don’t get too hung up on bolts, nice to have matching numbers and a hollow, but it can still be the real deal with a solid handled bolt). Unfortunately the No. 5 Mk 1 had a reputation for not being able to hold its zero (suffering a term called a “Wandering Zero”). That is, the inability for the rifle after being sighted in and zeroed to a distance, to be able to be fired again some time later and achieving that same point of impact. The No. 5 Mk 1 was produced from 1944 through to 1947 and total numbers were aproximately 250,000. Two thirds of the production was from Fazakerley the other 1/3rd BSA Shirley. It was still a .303 calibre bolt-action rifle with a ten round magazine and weighed just over 7 pounds. The woodwork (furniture) was reduced as well and a rubberised butt plate was introduced, further reducing the overall weight . Due to the flash hider it required a special bayonet, oddly enough called the No. 5 Mk 1. There was a later version of the No. 5 Mk 1 rifle however these were in very limited numbers. These being the No. 5 Mk II and No. 6 Mk I.