Springfield Armory XD OSP 9mm 4″ Slide Assembly Kit

This kit provides a complete OSP-cut full-size XD slide assembly packaged with a recoil spring assembly, barrel, and an optics mounting plate in the Springfield Micro footprint. The optics mounting plate accepts compatible micro optics and is designed to allow co-witnessing with the included high fiber optic/U-notch rear sight. The assembly is supplied in an anodized black finish on steel and includes the components needed to outfit a compatible full-size XD frame.

The kit can convert select XD variants to a full-size 4″ OSP 9mm configuration as described by the manufacturer:

• XD 5″ 9mm to XD 4″ OSP 9mm
• XD 4″ .40 to XD 4″ OSP 9mm (with purchase of 9mm magazine)
• XD 5″ .40 to XD 4″ OSP 9mm (with purchase of 9mm magazine)

Key Specifications

• The model is XD OSP.
• The material is Steel.
• The finish is Anodized.
• The color is Black.
• The barrel length is 4″.
• The caliber is 9mm.
• The kit includes a barrel and recoil assembly.
• The kit includes an optics mounting plate in the Springfield Micro footprint.
• The sights are High Fiber Optic/U-Notch Rear.
• This assembly fits Full-Size XD Frame.

This complete slide assembly gives owners a practical, optics-ready option in a single kit—providing the slide, barrel, recoil components, and mounting plate needed to add OSP compatibility or convert compatible XD variants to a 4″ 9mm configuration. Its steel construction and anodized finish deliver a durable, OEM-style replacement for users focused on modular optics integration and dependable service in everyday carry and range contexts.