Odin Works 9mm / .40 SW +5/4 Magazine Extension for Smith & Wesson M&P Pistols - Black

Add some extra rounds to your magazines with the Odin WorksA(R) 9mm / .40 SW +5/4 Magazine Extension for Smith & WessonA(R) M&PA(R) Pistols. This magazine extension adds +5 to your 9mm M&P magazines and +4 rounds to .40 SW M&P magazines. Plus, it is ergonomically machined to fit perfectly in the palm of your hand for easy stripping while a weight base makes lightning-fast reloads a breeze. This magazine extension comes with an extra power spring and a proprietary threaded pin for easy installation straight out of the box. This mag extension features 6061 aluminum construction with a corrosion-resistant nitride finish to ensure unmatched strength and a lifetime of dependable use. Made in USA.