Springfield Armory Hellion Aluminum Rail M-Lok®**This SL (Standard Length) variant is being replaced with the new SLS (Standard Length Slim). Can be expected mid September 2026.** Get rid of the OEM hand guard and its angled M Lok slots. Say hello to the aluminum rail. It has M Lok on 5 sides and no strange angles to deal with. They are Cerakoted for a very solid and reliable finish. The rear spacer may need some sanding. They have been made a specific thickness so they will never rattle. Most
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