XD OSP 4" SLIDE FULL ASSEMBLY BARREL/RECOIL ASSEMBLY Manufacturer Model Number: XD4902 Manufacturer: Springfield Armory Model: XD OSP Slide Caliber: 9mm Type: Accessory-Slides Item Type: Accessory Finish: Black Melonite Finish Sights: High Fiber Optic/U-Notch Rear Shipping Weight: 1.15 Feature: Fits Full-Size XD Frame Feature: Includes Optics Plate Feature: Includes Barrel/Recoil Assy. Optic Adjustable Objective: false Optic Reticle Illuminated: false