ProMag GLKA17 22rd .45 ACP Magazine for Glock 21/30

This ProMag GLKA17 is a 22-round detachable magazine designed for use with Glock Model 21 and Glock Model 30 pistols chambered in .45 ACP. The body uses a DuPont Zytel polymer engineered for dimensional stability, and it incorporates a full-length steel internal insert stamped and welded in the factory style. The magazine features an injection-molded follower and a spring formed from heat-treated chrome silicon wire. The unit is manufactured in the United States.

Key Specifications

• The magazine capacity is 22 rounds.
• Compatible with Glock 21 and Glock 30 models.
• The cartridge type is .45 ACP.
• The magazine body material is DuPont Zytel polymer.
• The internal support is a full-length steel internal insert stamped and welded like the factory magazine.
• The magazine follower is an injection-molded follower.
• The spring is made from heat-treated chrome silicon wire.
• The exterior finish is black.
• The product is Made in USA.

Built to provide extended capacity with a factory-style fit, this magazine offers a durable polymer body reinforced with a steel insert for consistent feeding and longevity. Its components are specified for stable performance under regular range use, service applications, or as a higher-capacity option for responsibly equipped owners seeking reliable magazines that match Glock platform tolerances.