Glock MF27009 G27 9-Round .40 S&W Magazine - Black Polymer

The Glock MF27009 G27 9-round .40 S&W magazine is a factory-original, drop-free mag built to Glock's exacting standards for reliable feeding and durability. If you carry a G27 or run one for self-defense, duty, or range work, this magazine is exactly what your gun was engineered to run—no guessing, no compatibility headaches. The hardened steel feed lips and follower are encased in high-tech polymer that resists deformation and damage even if you drop it hard, so your magazine survives the rough life of a working gun.

New Glock magazines can feel stiff out of the box. The spring and follower need a break-in period before they move freely—this is normal and not a defect. Load it with eight or nine rounds and let it sit for a few days, or cycle it repeatedly from full to empty to speed up the process. Once broken in, it will function flawlessly. The polymer body won't rust, won't dent easily, and won't slow you down when speed counts.

Whether you're building a second magazine for your carry gun, stocking spares for the range, or maintaining a duty rig, the MF27009 is the OEM choice backed by decades of Glock reliability. One magazine ships here—buy multiples if you need more on the belt or in the bag.

Key Features

• Factory-original Glock magazine engineered for G27 pistols
• Drop-free design—mag releases cleanly when needed
• Hardened steel internals wrapped in durable polymer body
• Resists deformation and impact damage from drops and rough handling
• Rust-resistant construction ideal for duty or defensive carry

Specifications

Frequently Asked Questions

Will this Glock .40 magazine work in my G27?

Yes. The MF27009 is made by Glock for the G27 and is fully compatible. It's the factory-original mag your pistol was designed to use.

Why is my new Glock magazine so hard to load?

Factory Glock magazines ship with a stiff spring that requires a break-in period. Load it to capacity and leave it for a few days, or work it by hand (cycling full to empty repeatedly) to speed up the process. After break-in, loading will feel much smoother.

Can I trust this magazine if I drop it?

Yes. The polymer body and hardened steel internals are designed to survive drops and rough handling without deformation or feeding problems. Glock magazines are built for hard use.

What's included?

One factory-original Glock G27 magazine. If you need more, order additional units.