The EM-1, often referred to as the Thorpe rifle, was an experimental assault rifle designed by Stanley Thorpe.
The EM-1 rifle was designed in the mid-40s and entered British rifle trials during the following years. It was a bullpup select-fire rifle with a carrying handle and integral optical scope, a trait shared with the competing EM-2 rifle. The EM-1 was designed to be adaptable to multiple combat scenarios; it could be used as an assault weapon, a marksman rifle or a support weapon. The EM-1 was a complex and user-unfriendly weapon, however, and it lost out to the EM-2, which was briefly adopted by the British Army but quickly replaced by the Belgian FAL.