Description
The Rival Arms Mag Baseplate is a simple upgrade that punches above its size. It replaces the factory polymer floorplate on your Glock magazine with a CNC-machined aluminum plate finished in a durable black hard anodize. That extra metal at the bottom of the mag does real work: it pulls the magazine down and out cleaner when you hit the release, which is exactly what you want when you're running the gun fast or under a shot timer.
Rival Arms machines these from aluminum and hand checks every piece before it ships, so the fit and consistency stay dialed in from plate to plate. The added mass also gives the pistol a slightly more planted, balanced feel in the hand, and it helps take some of the sting out of felt recoil on lighter double-stack frames. If you've ever fumbled a reload because a mag hung up on a sweaty palm or a rubber magwell, this is the kind of small change that fixes it.
Where the Rival Arms Baseplate Fits
This floorplate is built for Glock magazines chambered in 9mm, .357 Sig, and .40 S&W. It covers the vast majority of the double-stack lineup, so guns like the 17, 19, 22, 23, 26, 34, and 35 are all in play. Keep in mind it does not fit the single-stack and slimline models, specifically the Glock 36, 42, 43, and 48, since those magazines use a different footprint.
Install and Everyday Use
Swapping the baseplate is a quick, hands-on job with no gunsmithing required. You depress the factory floorplate lock, slide the old plate off while controlling the spring, then reverse the process with the Rival Arms plate. It's the kind of upgrade you can knock out on the workbench in a couple of minutes per mag. Backed by a limited lifetime warranty, it's built to keep taking mag drops on concrete and hard reloads without complaint, which makes it a favorite for range days, competition, and anyone who just likes their gear built from metal instead of plastic.
Key Specifications
- Manufacturer: Rival Arms
- Manufacturer Part Number: RA70G001A
- UPC: 788130028544
- Model: Mag Baseplate
- Brand Fit: Glock
- Caliber/Gauge: 9mm Luger / .357 Sig / .40 S&W
- Model Fit: Glock (except 36, 42, 43, 48)
- Material: CNC-Machined Aluminum
- Finish: Black Hard Anodized
- Country of Origin: USA
- Warranty: Limited Lifetime
What’s Included
- Rival Arms magazine baseplate (1)
Frequently Asked Questions
Which Glock magazines does the Rival Arms baseplate fit?
It's designed for Glock double-stack magazines in 9mm, .357 Sig, and .40 S&W. That covers popular models like the 17, 19, 22, 23, 26, 34, and 35. It does not fit the Glock 36, 42, 43, or 48, which use different single-stack and slimline mags.
Does the Rival Arms mag baseplate really help with reloads?
Yes. The added aluminum mass at the base of the magazine helps it drop free faster and more reliably when you hit the mag release. That's a noticeable difference during speed reloads or when a rubber magwell tends to hold a mag in place.
Is the baseplate hard to install?
Not at all. You depress the factory floorplate lock, control the spring, slide the old plate off, and swap the Rival Arms plate on in its place. No tools or gunsmithing are required, and it takes only a couple of minutes per magazine.
What is the baseplate made of and how tough is it?
It's CNC-machined from aluminum with a black hard anodized finish, and every piece is hand checked before it ships. That construction holds up to repeated mag drops on hard surfaces and the wear of aggressive reloads, and it's backed by a limited lifetime warranty.





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