EMA® Triple Picatinny Rails for Mossberg 500 Forend.
From EMA®, here's the way to juice up your Mossberg 500! Rail System adds two 2.5" side rails for lights and lasers, plus a full-length 6.5" lower rail for grips and larger accessories. Made from rugged high-impact polymer for rigid, lightweight strength. Mil-std. 1913 rails. Gunsmithing required for installation.