Hot New Gun: Sig MCX Pistol Variant

The Sig MCX is one of the most high-profile firearms of the year. The pistol variant has generated a lot of buzz--both because shooters have been clamoring to get their hands on one and because the ATF has recently published a letter voicing concerns over the configuration of the brace.

We take a look at the controversy and at what makes the MCX such an interesting firearm platform.