Sneak Peek: Testing Sig Sauer’s New Multi-Caliber MCX Series

The next-gen MCX allows users to switch barrels, calibers, handguards and stocks with easy—turning your 5.56mm CQB carbine into a 300 BLK rifle or 7.62x39mm SBR! Read more here: http://www.tactical-life.com/firearms... For more infor...