Glock 30821 | Gen4 Backstrap/Beavertail | Black Polymer

This OEM Glock Gen4 backstrap and beavertail replacement kit provides factory-fit ergonomics and modular grip options for compatible Gen4 compact pistols. Glock OEM parts and accessories are made with the same attention to detail and quality as the ultra-reliable pistols. The kit is intended to restore or customize grip feel for carry or range use, improving hand purchase and control. Compatible applications include everyday carry (EDC) customization and range/practical training where grip ergonomics matter.

Product Specifications

• The manufacturer is Glock.
• The manufacturer part number is 30821.
• The product is a Gen 4 Modular Backstrap Replacement Kit.
• The material is Polymer.
• The color is Black.
• The item is described as a Modular Back Strap Replacement Kit.
• The kit is compatible with Glock G26 and G27 Gen4.
• The product type is Part.
• The subcategory is Handgun Parts.
• The UPC is 764503043352.

This backstrap and beavertail set offers a straightforward OEM replacement solution for Gen4 compact Glock owners seeking original fit and finish. Its polymer construction keeps weight low while maintaining the factory profile and functionality expected from Glock parts.