2009 SR-556 semi-automatic rifle. The Ruger SR-556 is a relatively new commercial market addition to the Armalite AR-15 family of automatic. Its a overall weight of 7.9lbs. With a 30 round magazine.
2013 Colt LE901 carbine. It featured a semi-automatic action chambered. The overall weight is 9.4lbs. The gun has a finish matte black color. The barrel is 16.1 inches. With a 30 round magazine.
2014 Barrett XM109 OSW sniper Manufacturing of the United States from Barrett M82/M107. This sniper has 5 rounds in one magazine. This sniper weight is over 33 lb. The barrel is 17.6 inches long.
The most important gun is the Colt LE901 carbine because of how effective it is and it carries 30 round magazine.