ProMag S&W 645/4506/4566/4586 Magazine .45 ACP 8rd

The ProMag single-stack magazine is designed for the Smith & Wesson 645, 4506, 4566 and 4586 series, chambered in .45 ACP. It provides an eight-round capacity in a compact package suitable for range use, duty, or service carry. The body is constructed from heat-treated blued steel with polymer components to manage feeding and durability. Springs are wound from chrome-silicon wire and heat-treated for consistent function.

Key Specifications

• The magazine fits Smith & Wesson 645, 4506, 4566 & 4586 series.
• The caliber is .45 ACP.
• The capacity is 8 rounds.
• Construction uses a heat-treated blued-steel body.
• The follower and base-plate are molded from a DuPont Zytel-based black polymer.
• The spring is wound from chrome-silicon wire, heat-treated.
• The magazine uses a single-stack design.
• The finish is blued.

Engineered to provide reliable feeding and consistent spring tension, this ProMag magazine is a practical replacement or spare for supported S&W models. Its steel construction and polymer components balance durability with functional reliability for regular range use and service applications.