Glock OEM Firing Pin Assembly Kit 1 SP04557 GEN 1-4

Designed to fit Glock Gen 1-4 Models: G20, G21, G29, G30, G36, G40, G41.    Calibers: 10mm, .45 ACP.

Restore your Glock to factory condition with the Glock OEM Firing Pin Assembly Kit 1 (SP04557) for Gen 1–4 models, now available at NDZ Performance. This genuine Glock factory part includes everything you need to repair, replace, or rebuild your firing pin assembly with the same components trusted by Glock from the factory. Engineered to meet strict OEM standards, this pre-assembled unit ensures reliable ignition, consistent performance, and long-term durability for your Glock pistol. Whether you're performing routine maintenance or rebuilding a slide, this drop-in kit is the perfect choice for maintaining your firearm’s safe and reliable operation.

Kit Includes:

• 1 Firing Pin: SP04557.
• 1 Firing Pin Spring: SP00063.
• 1 Set of Spring Cups (2 cups total): SP00070.
• 1 Spacer Sleeve: SP00056.

Features:

• Genuine Glock factory replacement part.
• Pre-assembled for easy drop-in installation.
• Maintains factory specs for performance and safety.
• Ideal for repairs, maintenance, or full slide rebuilds.
• Made in Austria and trusted by Glock owners worldwide.
• Available now at NDZ Performance.

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.