ETS SW9-MP-21 Smith & Wesson M&P 9mm Magazine

Advanced Polymer Construction

The ETS SW9-MP-21 magazine represents a modern approach to firearm magazines. Built from advanced impact-resistant polymer, this magazine delivers the durability you need in the field without the weight of traditional steel.

Key Features

• 21-round capacity for Smith & Wesson M&P pistols (full-size and compact models)
• Translucent polymer body allows you to see your ammunition count at a glance
• Creep-resistant design prevents feed lips and body from spreading during long-term storage, even when fully loaded
• Superior material performance resists heat, cold, and UV exposure
• Interchangeable base plate compatible with other ETS 9mm double-stack magazines
• Easy disassembly with ETS's specially designed base plate system
• Glock extension compatible for customization options
• Ergonomic floor plate designed for quick, secure retrieval from magazine pouches

What You Should Know

This magazine is engineered for the full-size and compact Smith & Wesson M&P platforms. It is not compatible with the M&P Shield variant. The polymer construction provides reliable feeding while maintaining the lightweight characteristics shooters demand for extended range sessions or duty carry.

Whether you're building a backup magazine supply or upgrading your existing setup, the ETS SW9-MP-21 offers proven reliability at a practical price point.