Ever wondered what the M in M16 or the B in B52 mean? Well, here it is

M-Model-this tells the model of the weapon. Ex. Model 14(M14), Model 16(M16)

F-Used to identify fighter aircraft (F-15, F-16)

B-Used to identify bomber aircraft (B-17, B-29, B-52)

T-Used to identify tanks (T-80, T-72)