This gundam paper model is GN-9999 Transient Gundam, a mobile suit from Gundam Build Fighters Try, the papercraft is created by hikaru11, and shared by yenc. The scale is in 1:60. GN-9999 Transient is built and piloted by Wilfrid Kijima.
Used by team Celestial Sphere's team leader, Wilfrid Kijima, the Transient Gundam's design is based on the various GN Drive equipped mobile suits appearing in Mobile Suit Gundam 00. The suit's primary weapon is the double-edged spear known as GN Partizan, and its other armaments include GN Vulcans and Beam Sabers. The GN Partizan functions as both a melee and ranged weapon, it can also act as a Lance Bit that can separate further into two small Lance Bits. The suit is also equipped with a GN Field for defensive purposes, and its trump card is the Transient Burst - a customized system that grants the suit increased combat performance. When airborne or in space, the Transient Gundam's feet are folded up. [Source: wikia]
You can download this papercraft template here: