Glock OEM Large Frame Lower Parts Kit | PF45 G20 G21

SKU: GLGLPK


From: $64.99

In Stock
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Glock OEM Large Frame Lower Parts Kit | PF45 G20 G21

Fits Polymer80 PF45 Frame Kits

Complete your large-frame Glock-style build with confidence using the Glock OEM Large Frame Lower Parts Kit, designed specifically for the Polymer80 PF45 platform. This kit is ideal for finishing out your PF45 80% lower for models such as the Glock® 20 and G21. Whether you’re assembling a powerful 10mm or .45 ACP pistol, these factory-original Glock® parts ensure a perfect fit and uncompromising reliability.

Each component in this large frame lower parts kit is 100% genuine Glock OEM and manufactured to the exacting standards that Glock® is known for. The included trigger housing features the correct SF-style ejector (part #5406), ensuring proper function with the larger calibers supported by the PF45 frame. With this kit, builders can trust they’re installing high-quality internals that match the performance of factory-complete pistols.

Whether you’re building from the ground up or replacing worn parts, the Glock® OEM Large Frame Lower Parts Kit makes completing your PF45 a hassle-free experience. Every part has been selected for guaranteed compatibility and seamless integration with the PF45 frame and Gen 3 Glock® G20/G21 specifications.

Included Components:

  • OEM Glock® Trigger with Trigger Bar
  • OEM Glock® Trigger Housing with Ejector (Part #5406 – SF Type)
  • Trigger Spring
  • Slide Lock and Slide Lock Spring
  • Slide Stop Lever with Spring
  • Connector
  • Trigger Pin
  • Locking Block Pin
  • Magazine Catch
  • Magazine Catch Spring

Note: This kit does not include the frame, slide, or upper parts. It is intended for use with the Polymer80 PF45 frame only and is not compatible with other frame platforms.

Due to Glock®‘s strict manufacturing standards and the advanced design of the PF45 frame, this kit offers outstanding performance for builders who demand OEM-grade quality in their large-caliber builds.

If you have any questions about compatibility, installation, or Glock® OEM parts, our team is always here to help. Build it right with Arm or Ally.

Product Information

Compatibility

G20, G21, Gen 3

Made in USA

Yes

Manufacturer

Glock

select-model

G20 – 10mm, G21 – .45 ACP

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