We get to see the latest in the MCX line of Sig Sauer, the SIG MCX Rattler that is available in PSB and SBR variants. Now, can somebody make airsoft versions of the MCX Series? Please? Watch the video below... "The fourth and final installment in the SIG MCX® video series unveils the SIG MCX Rattler, a rifle designed shorter than any M4 ever produced. Built at the request of elite military units, the SIG MCX Rattler offers M4 ballistics in a subgun-sized package. With a 5.5-inch barrel and overall length of only 16-inches when folded, the SIG MCX Rattler rewrites the possibilities for ultra-compact firepower."