Rival Arms Mag Baseplate for Glock 9mm/.40 S&W/.357 Sig

The Rival Arms Mag Baseplate for Glock 9mm/.40 S&W/.357 Sig (Rival Arms part no. RA70G001A) is a CNC-machined aluminum baseplate that adds weight to the bottom of compatible Glock magazines. Rival Arms finishes it with a hard-anodized coating for durability, and the added mass speeds up magazine changes while reducing felt recoil for a more balanced pistol. It fits Glock 9mm, .40 S&W, and .357 Sig magazines, with the exception of the Glock 36, 42, 43, and 48. It is a simple upgrade for competitive shooters chasing faster splits and smoother reloads.

Key Specifications

• Adds weight at the base of the magazine for a more balanced pistol.
• Helps speed up magazine changes and reduces felt recoil.
• CNC-machined from aluminum for a precise, durable fit.
• Finished with a hard-anodized coating for wear resistance.
• Fits Glock 9mm, .40 S&W, and .357 Sig magazines, except Glock 36, 42, 43, and 48.
• Drop-in installation — no gunsmithing required.
• A popular upgrade for competitive shooters chasing faster reloads and less muzzle rise.
• Sold individually — upgrade one magazine or a full set.
• Weighs about 0.5 lb, light enough to carry as a spare.

Frequently Asked Questions

What does the Rival Arms Mag Baseplate do? It adds weight to the bottom of your Glock magazine, which speeds up magazine changes, adds felt weight, and reduces felt recoil for a more balanced pistol.

Which Glock models does it fit? It fits Glock 9mm, .40 S&W, and .357 Sig magazines, with the exception of the Glock 36, 42, 43, and 48.

What is it made of? It’s CNC-machined from aluminum with a hard-anodized finish.

Buy the Rival Arms Mag Baseplate for Glock 9mm/.40 S&W/.357 Sig

Order the Rival Arms Mag Baseplate for Glock 9mm/.40 S&W/.357 Sig from our Lubbock, Texas gun shop for fast shipping. Browse more gun parts at Schaefer Defense.