ProMag Glock 21 .45 ACP 13-Round Polymer Magazine

This ProMag detachable magazine is listed for Glock 21 pistols chambered in .45 ACP. It has a black polymer body with a full-length steel internal insert and a 13-round capacity. Source data also references Glock 30 compatibility, so the fit information should be reviewed before purchase.

Key Specifications

• The magazine is listed for Glock 21 pistols.
• It is chambered for .45 ACP ammunition.
• The magazine holds 13 rounds.
• The body is constructed from black polymer.
• A full-length steel internal insert supports the magazine body.
• The magazine uses a chrome-silicone wire spring.
• The follower is injection molded.
• The magazine is a detachable pistol magazine.
• Listed dimensions are 1.95 × 2.90 × 9.15 inches.
• The magazine is made in the USA.

With its polymer construction, steel internal insert, and stated 13-round capacity, this ProMag magazine provides a practical replacement or additional magazine option for the listed .45 ACP Glock application. It is finished in black and designed for straightforward storage and range use.

Direct shipment is listed as unavailable to California, Rhode Island, and Washington; the attribute data also lists no sale to Oregon. Magazine laws and shipping eligibility vary by jurisdiction.