This replacement SKS gas tube with handguard is proudly 100% U.S. made and simple to install. The steel tube has been totally redesigned to be stronger than the original and sure to improve your gas system. Complete with a Picatinny railed composite handguard, no retaining clip or pin are required. Instead, the handguard is securely held in place by two steel roll pins. Optimize your SKS gas system by adding a U.S. made gas piston and operating rod!