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Kirby, no Sir. The M&P Sport has a Carbine Length Gas System (needed as replacement) and this is a Mid Length Hand guard. ---- https://www.budsgunshop.com/catalog/product_info.php/products_id/714014343/magpul+moe+m-lok+handguard+carb+fde

Kirby, If you install a low profile gas block on your M&P sport this hand guard would work, but with the carbine length gas block on the M&P Sport in the way the mid length hand guard is too long.