PROMAG MAG SW 645 4506 4566 4586 45ACP 10RD NKL

If you run a Smith & Wesson 645, 4506, 4566, or 4586 in .45 ACP, a ProMag Nickel 10-round magazine for Smith & Wesson 645/4506/4566/4586 .45 ACP gives you a reliable feeding solution for the range, competition, or duty carry. ProMag has built a reputation for producing affordable, functional magazines that work when it counts—and this single-stack design is no exception. Whether you're stocking spares for your favorite full-size .45 or keeping backups in your range bag, having multiple magazines on hand means more time shooting and less time loading.

The nickel finish offers some corrosion resistance and a clean aesthetic that pairs well with stainless steel frames. At 10 rounds, this magazine delivers the standard capacity for these S&W models, letting you load to your local legal limits without any guesswork. The single-stack design keeps the grip profile true to your pistol's ergonomics—no bulky double-stack feel here. Magazine springs and followers are engineered to handle repeated loading and unloading without losing their snap, so feeding remains consistent across thousands of rounds.

ProMag magazines are commonly chosen by shooters who prioritize value without sacrificing function. If you already trust your S&W .45 and just need dependable backup mags, this is a straightforward addition to your kit. Keep one in the range bag, one on the nightstand shelf, and one in rotation during practice—having spares is one of the easiest ways to extend your training sessions.

Key Features

• Fits Smith & Wesson 645, 4506, 4566, and 4586 pistols
• 10-round capacity for .45 ACP
• Single-stack design maintains original grip ergonomics
• Nickel finish for corrosion resistance
• Reliable spring and follower design

Specifications

Frequently Asked Questions

Will this magazine work with my Smith & Wesson .45?

This ProMag 10-round magazine is designed for the S&W 645, 4506, 4566, and 4586 series in .45 ACP. If your pistol is one of these models, it will fit and function correctly. If you own a different S&W .45 model, you'll want to verify compatibility before ordering.

What's included in the box?

You receive one nickel 10-round magazine for your S&W .45 ACP pistol.

Can I use this for competition or duty carry?

Many shooters use ProMag magazines for both range practice and defensive carry. At 10 rounds in .45 ACP, this magazine provides standard capacity for these S&W models and is suitable for training, competition, and duty applications, depending on your local laws and department policy.

Is the nickel finish durable?

The nickel finish helps resist corrosion and provides a clean appearance, though like any magazine, proper cleaning and inspection after use will keep it in top condition over time.