UTG Gen 2 Windowed Polymer Magazine for Glock, 33 Round Double Stack, 9mm The UTG Gen 2 windowed polymer magazine for Glock is a 33 round durable and impact resistant glass fiber reinforced polymer 9mm double stack magazine for Glock 9mm double stack pistols and compatible clones and rifles. The windowed magazine is compatible with left or right-handed magazine releases and externally features a flared lower main body with raised bosses for added grip retention, left and right-side windows and round count indicators, and an easy to remove for maintenance thermoplastic anti-slip base pad. Internals include a high visibility blue anti-follower and high longevity stainless steel spring for reliable feeding. Gen 2 enhancements smooth up magazine insertions and further prevent rubbing of the trigger bar in various pistol clones Durable and impact resistant glass fiber reinforced polymer construction with a matte finish 33 round capacity with durable co-molded polymer window and debossed round count indicators at 10, 15, 20, 25, and 33 Anti-tilt high visibility blue follower and high longevity stainless steel spring for reliable feeding Flared lower main body with raised bosses for additional grip retention Compatible with Glock 9mm double stack pistols and compatible pistol caliber carbines, large platform pistols, and pistol clones Compatible with reversible magazine release for left or right-handed users Easy to remove tpu over-molded anti-slip base pad