GLOCK® 21 Compatible Stainless Steel Barrel | Polymer80
About this product
GLOCK® 21 Compatible Stainless Steel Barrel
Factory Gen 3 and Polymer80 Compatible. Full stainless construction for superior performance.
This GLOCK® 21-compatible stainless barrel delivers exceptional accuracy and a polished aesthetic at an unbeatable value. Crafted from high-quality 416R stainless steel, it offers enhanced corrosion resistance and effortless cleaning, while its polished feed ramps ensure reliable feeding for smooth operation. Ideal for pairing with your factory Gen 3 GLOCK® 21 or integrating with the Polymer80 PF45 frame to complete your custom build, this barrel is a top choice for enthusiasts seeking durability and precision.

Technical Specifications
- Twist Rate: 1:10 for optimal bullet stabilization
- Material: 416R Stainless Steel, known for its strength and finish
- Compatibility: Designed for GLOCK® 21 Gen 3 models and Polymer80 builds
As experts in the firearms industry, Polymer80 ensures this barrel meets rigorous standards for safety and performance, backed by years of innovation and customer trust. Whether you’re upgrading an existing firearm or embarking on a new project, this barrel provides the reliability and aesthetic appeal that shooters demand.
What's in the box
- GLOCK® 21 Compatible Stainless Steel Barrel | Polymer80