Choosing the correct slide: These slides are manufactured for use on Glock pistols and categorized according to generation and model. For example, an SI-317 is intended for a Gen 3 Glock 17. The "SI" designated our company. The first number - "3" in this example - designates the generation (Gen 3 or Gen 4). The next two numbers - in this example "17" - designates the model (such as a Glock 17, or a Glock 19).
All prices are in USD.