ProMag SMI12 .45 ACP 8-Rd Blued Steel Pistol Magazine for S&W 645/4506/4566/4586

The ProMag SMI12 is an 8-round .45 ACP single-stack pistol magazine built as an affordable replacement or spare for the Smith & Wesson 645, 4506, 4566, and 4586 series of full-size, compact, and subcompact duty pistols. ProMag constructs the body using traditional stamping and welding of heat-treated high-carbon steel, finished in a deep blued coating that matches the look of the original factory magazine.

Designed to feed reliably in the S&W third-generation .45 ACP platform - the full-size 645, the duty-standard 4506, the compact 4566, and the subcompact 4586 - this single-column magazine holds the original factory 8-round capacity. That makes it a natural choice as a range magazine, a duty backup, or an easy way to expand a collectible or competition pistol's round count without paying OEM prices.

Like every ProMag product, the SMI12 is engineered for long service life and dependable feeding. For anyone running a S&W 645 or 4506-series .45 ACP pistol, this blued-steel 8-round magazine rounds out the kit at a practical price.