Attendee examines a Sig MPX at the 35th Annual SHOT Show

An attendee displays a Sig MPX, a 9mm submachine gun with a 30 bullet magazine attached at the Sig Sauer booth at the National Shooting Sports Foundation's 35th annual Shooting, Hunting, Outdoor Trade (SHOT) Show at the Sands Expo and Convention Center January 16, 2013 in Las Vegas. The SHOT Show is the largest annual gathering of shooting professionals with more than 1,600 exhibitors and 60,000 attendees expected. UPI/David Becker