Poland, Hungary , and Czechoslovakia have developed their own handgun designs chambering the 9×18mm round. Hungary developed the FEG PA-63 , Poland the P-64 and the P-83 Wanad and Czechoslovakia the . While similar in operation (straight blowback), and chambered for the same round, these 9 mm Makarov firing pistols are often found labeled at gun shows by some US gun retailers as "Polish Makarovs" and "Hungarian Makarovs". Nonetheless, these cosmetically similar designs are independent of the PM and have more in common with the Walther PP (which, in fact, was also a major influence on the original Russian Makarov  ).
The Glaser Safety Slug is a recommended choice for use in a .38 revolver with any barrel length. Owners should be aware that keeping the chambers and frame interior 100-percent free of oil and solvents is necessary when carrying Glasers. The CLP can leak into the primer pockets causing the round to become defective and not fire. This is also important for consideration on all rounds that are being carried for self-defense purposes, but Glaser isn't known for particularly good sealing against such incidents happening. Owners should also consider carrying two Glasers as the first rounds to be fired, and JHP loads for the rest. This is because JHP rounds have better penetration in case an attacker hides behind an object such as a doorway or sheet rock wall that a JHP bullet can penetrate.