Warne 3306 Magazine Extension Black, +3 (9mm Luger), +4 (40S&W), for S&W M&P 9/40

Overview

The Warne magazine extension is designed for Smith & Wesson M&P 9mm and .40 S&W handguns, increasing capacity by +3 rounds for 9mm and +2 rounds for .40 S&W. Finished in black, the extension incorporates ergonomic finger grooves to facilitate secure magazine stripping during malfunctions and a contoured shape that ensures smooth insertion and firm seating into the handgun's magwell.

Price & Stock History

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