The BSA Model 28P is an assault rifle of British origin. The weapon was considered to replace the .303 Lee–Enfield after 1945. However, the BSA 28P was outdated compared to its rival, the EM-2 and the L1A1 SLR asides the 7.62 NATO calibre. The 28P rifle was tested during the summer of 1950 at Enfield but was not particularly accurate. An explosion in the breech showed a fault and although a revised variant subsequently performed well, the project was abandoned.