What is the difference between Gen3, Gen4, and Gen5 Glock models?

The main differences between Gen3, Gen4, and Gen5 Glock models lie in their design, features, and improvements. Gen3 Glock models represent the classic design and are known for their proven track record of reliability. Gen4 models introduced several advancements such as an interchangeable backstrap system to customize grip size and a dual recoil spring assembly for improved recoil control. Additionally, Gen4 Glocks have a rough textured frame known as the RTF (Rough Textured Frame) grip. Gen5 models further enhanced the design by introducing a flared magazine well for faster reloads, an ambidextrous slide stop, and an improved finish to increase durability. They also implement the Glock Marksman Barrel (GMB), which enhances accuracy. Each generation builds upon the previous one, offering incremental improvements to suit the evolving needs of Glock users.