The ProMag DRM-A69 50-Round Drum Magazine for Glock 20 10mm is engineered for reliability and performance, designed specifically for Glock Model 20 10mm pistols. Crafted using a combination of traditional stamping techniques and advanced polymer molding, this magazine ensures durability and efficiency for high-capacity shooting sessions. 50-round drum magazine Fits the Glock Model 20 10mm pistols Magazine body constructed of a proprietary DuPont Zytel based polymer Injection molded magazine follower Magazine spring formed from heat treated stainless steel Made in USA Invest in quality with the ProMag DRM-A69, backed by a lifetime guarantee.