It's a Rhodesian GM 16 SS. The LDP was superficially similar in operation, with the CZ style wrap around bolt and magazine well in the pistol grip, but the LDP had the letters " LDP" cast into the forend. The LDP also had an underfolding folding wire stock and used UZI mags. Unfortunately, I sold my LDP years ago, so I can't provide a large size pic for comparison, but imagine the result between the mating of an UZI and a MAC 11... with none of the good characteristics of each. Theres some controversy over whether the SAANA 77 or the GM 16 came first, they appeared at about the same time. The SAANA was intended for civilian sales, the GM 16 was supposedly a substitute standard weapon for the BSAP as well as civilians.