"With only 34 parts, the glock pistol is one of the simplest guns in the world. Disassembly can be accomplished in 15 seconds, detail strip in one minute simply by pushing out 3 pins. Parts changing is easy and availability of inexpensive parts is excellent. Glock makes many variants and many calibers but parts interchangeability is still outstanding between models. Almost every glock magazine will fit and function in any other glock ever made."