The M21 Lok is beauty, function and performance all engineered to push your machine to the next level. MSA came out with the M16 Vice beadlock UTV wheel a couple of years ago and was instantly a success. They knew they had to up the ante so they increased the diameter and went with a full faced 15x7" option on the new M21 Lok, allowing you more tire options for your unique terrain. Each M21 Lok wheel comes with all of the necessary parts to professionally lock any tire to your wheels to ensure a safe and quality ride. What makes this beadlock UTV wheel different from the rest is because of a couple unique MSA attributes: The finish MSA used on this wheel they are calling "gunmetal" which is actually a dark tinted clear-coat that is overlaid on top of the micro-machined wheel face adding depth, charcoal highlights and a completely new industry option.