The Thorneycroft Carbine is a British bolt-action rifle chambered in .303 British, feeding from a 5-round internal magazine. It was designed as an alternative to the Lee-Enfield rifle in the early 20th century, though the British decided to shorten their design instead, giving way to the universal Short Magazine Lee-Enfield Mk. III. Forty years later, the Thorneycroft design was recovered and put into limited production for use by the British Paras and the Special Air Service, owing to its short size and lighter weight.
