Glock 50981 Magazine Insert 45 ACP Gen5 21/21SF/30 Black Polymer

The Glock 50981 Magazine Insert transforms standard Glock 21 magazines for reliable feeding with shorter 45 ACP cartridges. This factory-engineered polymer component eliminates feeding issues that can occur when magazines aren't optimized for specific cartridge lengths.

What Makes This Different

Unlike aftermarket magazine modifications, this genuine Glock insert maintains factory tolerances and reliability standards. The precision-molded polymer construction ensures consistent cartridge positioning within the magazine body. Factory testing validates performance across temperature extremes and extended use cycles, delivering the same reliability standards as original Glock components.

Key Features

• Genuine Glock factory component with OEM quality standards
• Black polymer construction matches Glock magazine aesthetics
• Designed specifically for 45 ACP cartridge dimensions
• Compatible with Glock 21, 21SF, and 30 Gen5 magazines
• Drop-in installation requires no permanent modifications
• Maintains original magazine capacity specifications
• Resistant to common solvents and cleaning chemicals

Field testing demonstrates consistent feeding reliability across various 45 ACP loadings, from 185-grain target rounds to 230-grain defensive ammunition. Law enforcement agencies report improved function with duty ammunition when using these inserts in backup magazines. The component withstands repeated loading cycles without dimensional changes that could affect feeding geometry.

Technical Specs

• Material: High-strength polymer construction
• Color: Black finish matches Glock magazines
• Compatibility: Glock 21/21SF/30 Gen5 magazines only
• Caliber: 45 ACP cartridges
• Installation: Tool-free drop-in design
• Part Number: Glock 50981
• Country of Origin: Austria
• Warranty: Covered under Glock component warranty

This insert addresses a specific feeding concern while maintaining the reliability Glock magazines are known for. Professional armorers stock these components for departments transitioning ammunition types or experiencing feeding inconsistencies with certain 45 ACP loads.