Rock Island 3209 ACT-MAGBlued Detachable 17rd for 9mm Luger Sig P320, M17

The Rock Island 3209 ACT-MAG is a 17-round detachable magazine for 9mm Luger built to work with the Sig P320 and M17 platform. If you carry, compete, or train with a modern striker-fired duty or defense pistol, a quality magazine is non-negotiable—it's the link between you and reliable function. This blued metal magazine is engineered to feed reliably and withstand the demands of regular use, whether you're at the range, in a qualification course, or depending on your sidearm for personal protection.

Magazine capacity matters in real scenarios. The 17-round configuration gives you meaningful ammunition reserves without the bulk or weight penalty of extended basepads. The detachable design means you can run multiple mags, rotate them through training cycles, and keep spares staged exactly where you need them. The blued finish is classic and durable—a no-nonsense choice that prioritizes function over flash.

Rock Island, part of the broader Armscor family, has built a solid reputation in the affordable-to-mid-range segment for both firearms and components. This magazine reflects that philosophy: it's not exotic, but it's made to work. If your P320 or M17 is your go-to gun, having dependable backup mags isn't optional.

Key Features

• 17-round capacity for 9mm Luger
• Detachable design for easy rotation and spare storage
• Blued metal construction for durability and corrosion resistance
• Purpose-built fit for Sig P320 and M17 platforms

Specifications

Frequently Asked Questions

What pistols does this magazine fit?

The Rock Island 3209 ACT-MAG is designed specifically for the Sig P320 and M17 in 9mm Luger.

How many rounds does this magazine hold?

It holds 17 rounds of 9mm Luger ammunition.

Is this magazine detachable?

Yes, it's a detachable magazine, allowing you to quickly remove and replace it for loading, cleaning, or rotation between your pistols.