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An example of British ingenuity, the De Lisle Carbine, was made out of many already available parts. Designed by William De Lisle, it was a bolt action, .45 caliber carbine, with a suppressor. The basic stock, bolt, receiver, and trigger group is of the Lee-Enfield Mark III* type, although many of the parts were fairly heavily modified. The magazine (and the .45 ACP ammunition) were in common with the 1911 pistol. The sights on the production version from Sterling were from the Lanchester submachine gun. The barrel was modified from a Thompson sub machine gun. The 8.27 inch barrel was ported to allow the muzzle gases to escape slowly into the suppressor tube. The .45 ACP cartridge is easy to silence as it is fairly slow moving at around 750-850 feet per second, well below the speed of sound. The suppressor started at the back of the barrel and completely enclosed it, which gave it a very large internal volume.
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The De Lisle was only manufactured in very small numbers and only really issued to Commandos and raiding parties. No more than 129 were ever made of the production version. It is reputed to be one of the quietest weapons ever made, and certainly one of the most effectively silenced weapons of its era.
Why do I want a De Lisle carbine? Well for one, they have an amazing historical value as one of the rarest weapons of WWII. It is also one of the first weapons designed for special operations. Also, it is a .45, and that is always nice. And who really doesn't want a silenced firearm? Well, maybe some people, but they probably aren't reading this.