This is the ProMag Smith & Wesson 645, 4506, 4566, 4586 .45 ACP 8-round magazine. 

With these 8-round magazines from ProMag, you can keep your Smith & Wesson 645, 4506, 4566, or 4586 feeding flawlessly!

Constructed from heat-treated steel and featuring precision-cut side-facing witness holes, these magazines will keep your rounds perfectly protected while alerting you when it’s time to reload. 

The injection-molded polymer follower provides smooth and consistent performance, giving you the reliability you can count on. To top it all off, each magazine is made right here in the United States! Give your Smith & Wesson the magazines it deserves!

Don’t forget to add a couple of these high-quality magazines to your cart before you checkout!