Glock Gen 4 Backstrap & Beavertail Set — G20/21/40/41

This OEM Glock Gen 4 modular backstrap and beavertail replacement kit provides a factory-fit option for personalizing grip size and hand fit. The set is made from polymer and matches Gen 4 ergonomics for compatible Glock models. It is intended as a direct replacement to restore or modify the pistol's grip profile without altering the firearm's operation.

Key Specifications

• The set is an OEM replacement with a Gen 4 Modular Backstrap Replacement Kit designation.
• Designed to be compatible with Glock models G20, G21, G40, and G41.
• Constructed from black polymer to match factory components.
• Includes both backstrap and beavertail components for grip profile adjustment.
• Classified as a handgun part intended for fitment on compatible pistols.
• Functioned as OEM parts intended to maintain factory ergonomics.
• Packaged as a replacement kit for Gen 4 Glock frames.

This backstrap and beavertail set delivers a straightforward, factory-compatible way to customize grip feel and hand engagement. Its OEM construction and simple installation make it suitable for owners seeking a reliable, unobtrusive adjustment to fit their shooting needs while maintaining factory ergonomics.