Cybergun's officially licensed SIG SAUER 556 rifle is a high quality long rifle that shines in outdoors airsoft field play. Inspired by the real-steel Swiss-made .556 Sig Sauer rifle, this AEG is a a 1:1 scale replica with attention to detail. It's 380 FPS with 0.20g BB combined with an accurate long barrel make for easier long-distance shooting. This rifle features a full length nylon reinforced polymer handguard with lower and side picatinny/weaver rail sections for mounting aftermarket accessories such as lights, lasers, grips, and more. Its upper picatinny/weaver rail can mount aftermarket optics such as red dots or scopes that can be used with the Sig style front and rear iron sights. It's metal upper and lower receivers house a full metal gearbox that is every bit as durable as the rest of this high quality AEG. The utility crane stock has a secondary storage compartment for storing small items such as spare batteries. This rifle also comes with 2 Sig .556 style airsoft polymer high capacity magazines with a coupler to hold them together. Each magazine holds approximately 300 BBs each and when coupled together make reloading extremely quick.