This gundam paper model is a SD ZGMF-X24S Chaos Gundam, a Mobile Suit in the series Gundam SEED Destiny, the papercraft is created by Gundam Designer Thailand. The finished model stands about 25 cm tall.
One of the prototype mobile suits produced by ZAFT as part of its Second Stage Series, the ZGMF-X24S Chaos Gundam can transform from a MS mode into a MA mode that is designed for high speed, high mobility space combat. In compliance with the Junius Treaty, the suit is powered by a battery but it could be recharged during battle using the Deuterion Beam Energy Transfer System. The suit also has a new form of phase shift armor known as Variable Phase Shift armor, and is armed with various weaponry, including several CIWS guns, a multi-phase beam cannon, two beam sabers, two beam claws, a shield, a beam rifle and a pair of mobile weapon pods.
Most of these weapons can be used in either MS or MA form, and the mobile weapon pods are similar to the TS-MA2mod.00 Moebius Zero's gunbarrels but wirelessly controlled and can be used by a pilot without high spatial awareness. The suit's MA mode was previously tested by XMF-P192P Proto-Chaos and although it is specialized for space use, it has no problem operating on earth. A unique aspect of the Chaos' MA mode is it retains the full use of the MS mode's hands. Thanks to the high output thrusters mounted on the suit and on the two mobile weapon pods, the Chaos Gundam can fly in the earth's atmosphere without using any extra equipment. [Souce: wikia]
You can download this papercraft model here: SD ZGMF-X24S Chaos Gundam Paper Model Free Download