This mech paper model is Longbow, introduced in 2480 as the LGB-0C Longbow, service in the armies of the Inner Sphere since the days of the Star League and is one of the most well-known fire support 'Mechs in existence, from the video game MechWarrior 4, the papercraft is created by BLaaR, skins by Monkeyrum. The size of finished model is about 250 (H) x 280 (W) x 132 (D) mm.
The Longbow is a massive BattleMech weighing in at 85 tons and is able to move at a top speed of 54.0 km/h, thanks to a Strand 255 fusion engine. The Longbow is protected by fourteen and a half tons of armor. Some have criticized the design for its lack of CASE - making an otherwise rugged 'Mech vulnerable to a loss by an ammunition explosion. As a fire-support 'Mech though, the Longbow is a trusted and reliable machine that can be counted on to carry out the mission it is designed for. [Source: sarna]
You can download the papercraft model here: MechWarrior 4 - Longbow Free Mech Paper Model Download [Skins]