The Kriss USA KVAMX2K90BL00 Mag-Ex2 Extension Kit is an essential upgrade for firearm enthusiasts looking to enhance their Glock 17 magazines with increased capacity and performance. This innovative extension kit is specifically designed to integrate seamlessly with Glock 17 Gen3-5 17rd magazines, transforming them into formidable 40-round 9mm Luger magazines that provide extended firepower without sacrificing reliability. Constructed from durable black polymer with a sleek matte finish, the Kriss Mag Extension not only boosts magazine capacity but also ensures a robust build that can withstand rigorous use in various shooting environments. Engineered with precision, the MagEx2 Kit maintains the Glock's renowned reliability, making it an ideal accessory for both professional and recreational shooters who demand excellence in every shot. Whether at the range or in competitive settings, this extension kit offers the confidence and capacity needed to excel. Its compatibility with Glock 17 magazines across generations 3 to 5 ensures versatility and ease of use, while the discreet black polymer construction provides a professional appearance. With the Kriss USA Mag-Ex2 Extension Kit, you can experience a perfect blend of increased capacity and dependable performance, making it a must-have addition to your firearm accessories that enhances your shooting experience and meets the demands of discerning shooters.