ProMag RUGA37 StandardBlued Steel Detachable 15rd 40 S&W for Ruger SR

The ProMag RUGA37 is a 15-round detachable magazine built for shooters who carry or train with a Ruger SR in .40 S&W. Whether you're running drills at the range, heading out for personal defense practice, or simply want a reliable spare magazine on hand, this blued steel mag gives you the capacity to keep shooting without stopping to reload. ProMag magazines are built to feed consistently and handle the rigors of regular use.

Ruger SR owners know the platform rewards a solid setup, and having an extra magazine—or several—is part of that foundation. The RUGA37's detachable design makes it easy to swap mags quickly, whether you're practicing transitions, testing loads, or managing your carry rotation. The blued steel construction resists corrosion and pairs well with the SR's finish.

This is a straightforward, no-frills magazine designed to do one job well: feed .40 S&W rounds reliably into your Ruger SR. It's the kind of backup mag or range staple that keeps your shooting day uninterrupted.

Key Features

• 15-round capacity for .40 S&W
• Detachable design for quick magazine changes
• Blued steel construction
• Engineered for Ruger SR platforms

Specifications

Frequently Asked Questions

Will this magazine work in my Ruger SR .40 S&W?

Yes, the RUGA37 is designed specifically for Ruger SR pistols chambered in .40 S&W.

How many rounds does it hold?

The RUGA37 holds 15 rounds of .40 S&W ammunition.

What is the magazine made of?

It is constructed from blued steel, offering durability and corrosion resistance for regular use.

Can I use this as a backup or range magazine?

Yes, the detachable design makes it ideal for backup carry, range training, or rotating through multiple magazines during a shooting session.