ProMag Handgun Magazine Drum Black Polymer For Glock 22 / 23 .40 S&W 50/rd

<ul> <li>50-round drum magazine</li> <li>Fits the Glock Model 22/23 .40 S&W pistols</li> <li>Drum housing constructed of a proprietary DuPont Zytel based polymer</li> <li>Magazine upper tower has full length steel internal insert stamped and welded like the factory magazine</li> <li>Injection molded magazine follower</li> <li>Spring formed from heat treated stainless steel</li> <li>Made in USA</li></ul>