ProMag magazines are designed utilizing both traditional stamping and welding of heat-treated high carbon steel, and modern precision injection molding of mil-spec polymer compounds. Every ProMag magazine is backed by a lifetime guarantee against manufacturer's defects. Made in USA

• 50-round drum magazine
• Fits the Glock Model 17 & 19 9mm 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