ProMag RUGA37 Ruger SR40 40 S&W 15rd Black Oxide Steel Detachable Magazine

The ProMag RUGA37 is a standard-capacity 15-round replacement magazine for the Ruger SR40 and SR40c pistols chambered in .40 S&W. Built from heat-treated steel with a durable black oxide (blued) finish, this detachable pistol magazine is engineered to deliver reliable feeding and long service life for range, training, and everyday carry use.

The one-piece steel body houses an injection-molded polymer follower and a matched magazine spring for smooth, consistent round presentation under recoil. ProMag manufactures this magazine in the USA to keep your SR40 running with confidence, and the black oxide finish matches the factory look of the pistol while providing corrosion resistance for storage and carry.

Designed as a direct factory-spec replacement, the RUGA37 installs and drops free in both the full-size Ruger SR40 and the compact SR40c. Whether you need a spare for the range or a replacement for a worn factory magazine, this ProMag RUGA37 offers a dependable, USA-made solution at an excellent value.