ETS Smith & Wesson M&P 9mm 21rd Carbon Smoke Magazine

A 21 round 9mm magazine for the full size, double stack Smith & Wesson M&P. It does not fit the single stack M&P Shield or the M&P FPC carbine. The base plate swaps with the rest of the ETS 9mm double stack line and accepts Glock style extensions.

Carbon Smoke is a tinted translucent polymer, so the round count is visible without stripping the magazine. The polymer shrugs off drops, chemicals and cold, and it resists creep, so the feed lips hold their shape with the magazine loaded for months. ETS backs it with a lifetime warranty.