Cavalry Manufacturing SCAR-H Lower Posted by thriftstoretactical on May 17, 2013 Posted in: Uncategorized. Tagged: FN, Pmag, Scar Heavy, SCAR-H, SR-25. Leave a comment Wanna use SR-25 mags–read “Pmags”–in your SCAR-Heavy? Cavalry Manufacturing has a lower for that. It’s not thirty at $390, but you’ll save major bones on mags. Oh, and it’s not the serialized part, so it ships to you.