This model is in 1/700 scale. The aircraft are unarmed. There are two versions in this shop - One armed externally with 4x Kh-29 ASM and one without external weapons. The 12x Shenyang J-31 aircraft are connected as a single sprue by a wire under the body of the aircraft. Once the wires are cut the model does not require finishing.
According to Wikipedia: "The Shenyang J-31, (or "FC-31 4th Generation Multi-Purpose Medium Fighter") also known as "Gyrfalcon" or "Falcon Hawk" by some military enthusiasts, is a twin-engine, mid-size jet fighter currently under development by Shenyang Aircraft Corporation. The fighter has also been referred to as F-60 or J-21 Snowy Owl in some media reports."