Warne M&P 9/40 Magazine Extension – Gray

The Warne M&P 9/40 Magazine Extension adds capacity and grip length to factory Smith & Wesson M&P magazines. Designed for M&P 9mm and .40 S&W pistols, this extension provides additional rounds and extends the grip surface for better control during reloads and shooting. The gray finish matches common M&P color schemes.

Constructed from durable polymer, this extension installs on compatible M&P magazines without permanent modification. It maintains reliable feeding and function while increasing magazine capacity. The extension typically adds 5 rounds to 9mm magazines and 4 rounds to .40 S&W magazines, depending on factory magazine length. Installation requires disassembly of the magazine base plate.

• Type: Magazine Extension
• Compatible Firearms: Smith & Wesson M&P 9mm and .40 S&W pistols
• Material: Polymer
• Finish: Gray
• Capacity Increase: +5 rounds (9mm) / +4 rounds (.40 S&W), varies by base magazine
• Use: Competition, range training, increased capacity carry (check local laws)

Note: Verify magazine capacity laws in your jurisdiction before use. Extended magazines may not be legal in all areas and may affect pistol concealment.