FÉGARMY Arms Factory of Hungary started producing Walther PP/PPK clones in the late 1940s starting with their Model 48 which differed from the Walther PP only in minor details. By the late 1950s FÉG began making broader changes resulting in the PA-63, which uses a 9x18mm Makarov round. It quickly became standard issue to both Hungarian military and police forces. Due to its popularity and relative durability FÉG later issued models using .32ACP and .380 ACP caliber rounds (FÉG AP9 and PMK-380 respectively).There is no titanium in your FEG frame, only aluminum.