NDZ Black Internal Slide Parts Kit for Glock .40 .357 GEN 1-4

Designed to fit Glock Gen 1-4 Models: G22, G23, G24, G27, G31, G32, G33, G35.

Restore peak performance and reliability with the NDZ Performance Internal Slide Parts Kit for Glock GEN 1–4 models chambered in .40 S&W or .357 SIG. This complete drop-in kit includes all essential slide internals, built to OEM specifications and finished in black for a clean, tactical look. Perfect for DIY rebuilds, maintenance, or custom slide builds; this kit delivers consistent function and smooth cycling. Whether you're replacing worn components or starting from scratch, NDZ gives you the precision and reliability you expect. No shortcuts, just solid and dependable parts built to run hard.

Features:

• Complete internal slide rebuild kit for Glock .40 / .357 (GEN 1–4).
• OEM-spec components ensure factory-style function and fit.
• Black finish for a uniform, custom appearance.
• Ideal for slide repairs, refreshes, or custom builds.
• Drop-in installation, no gunsmithing required.
• Made in the USA by NDZ Performance.

Kit Includes:

• Firing Pin (.40 Cal): SP04270.

• Firing Pin Spring: SP00063.

• Firing Pin Spacer Sleeve: SP00056.

• Firing Pin Channel Liner: SP01148.

• Spring Cups: SP00070.

• Extractor: SP01899.

• Extractor Depressor Plunger: SP00112.

• Extractor Depressor Plunger Spring: SP00119.

• Spring Loaded Bearing LCI: SP03439.

• Firing Pin Safety Plunger: SP00077.

• Firing Pin Safety Plunger Spring: SP00091.

• NDZ Rear Slide Plate in Black finish.

See our complete line of Glock Gen 1-4 Products here

Note: NDZ always recommends any part be installed by a qualified and trained gunsmith. NDZ promotes the use of safety practices and gear when working on any firearm.