Strike Industries Recoil Spring Adapter Plate Glock Gen4/5 To Gen3 Black One Size. This adapter plate works with both captured and non-captured guide rods and features a drop-in installation process that is both quick and easy. The lightweight design and durable S45C steel construction make this adapter plate an ideal choice for anyone looking to upgrade their GLOCK weapon. With the Strike Recoil Spring Adapter Plate for GLOCK GEN4/5 to GEN3 you can better tune your setup to enjoy improved accuracy reduced recoil and an overall smoother shooting experience. Specifications for Strike Industries Recoil Spring Adapter Plate: Manufacturer: Strike Industries Color: Black Fabric/Material: S45C Steel Quantity: 1 Weight: 0.1 oz Features of Strike Industries Recoil Spring Adapter Plate Retrofit GEN4 or GEN5 slides to utilize GEN3 guide rods Broader range of tuning options with available aftermarket GEN3 guide rods Works with both captured and noncaptured guide rods Dropin installation Lightweight Made from S45C steel Package Contents: Strike Industries Recoil Spring Adapter Plate x1 Strike Recoil Spring Adapter Plate for GLOCK GEN4/5 to GEN3 Strike Industries SI-G4&5-RSA: Recoil Spring Adapter Plate Glock Gen4/5 To Gen3 Black One Size