The United States M10 Tank Destroyer ended up being provided to British forces through Lend-Lease, a program of aid to nations at war against Germany as well as its allies. Its primary armament ended up being considered under-performing by the British, whom replaced the 3'' weapon with all the AT 17-pounder that has been currently installed on Firefly Sherman tanks. The M10 had its baptism of fire during the Battle of Normandy"
