The Shield Arms Glock 17 +5/4 Magazine Extension in black is an essential upgrade for those seeking increased capacity and improved handling. This extension adds 5 rounds to 9mm magazines or 4 rounds to .40 S&W magazines, significantly enhancing your Glock 17's firepower. Manufactured from robust 6061 T6 aluminum, it offers exceptional durability and reliability in various shooting conditions. The extension features a sleek black anodized finish that resists wear and corrosion, ensuring long-lasting performance and appearance. Precision-machined for a perfect fit, it integrates seamlessly with factory and compatible aftermarket magazines. The textured surface provides improved grip and control, facilitating faster and more efficient reloads.

Features and Specifications:

• Designed for Glock 17 magazines (9mm and .40 S&W)

• Increases capacity by 5 rounds for 9mm or 4 rounds for .40 S&W

• Made from durable 6061 T6 aluminum

• Black anodized finish for corrosion and wear resistance

• Textured surface for enhanced grip and control

• Precision-machined for optimal fit and function

• Easy to install with included hardware

• Maintains reliable feeding and ejection

• Includes: Extension, extended spring, and mounting hardware

• Made in the USA