This is a custom backplate for your Glock. This fits all standard Glocks gen 1-5 EXCEPT the 42, 43, 43x, and 48. It is precisely CNC machined out a block of high-grade brass. Being CNC machined this ensures that every part is exactly the same and fits in your slide nicely. This product will ship within 3 business days after ordering, but we try to ship out parts the same day as ordered. You will receive a tracking number once the shipping label is created and then shipped using USPS first class. If you have any questions or custom orders please message us and we will get back with you.