The US Army is introducing a 3D printed grenade launcher, complete with 3D printed grenades, that could revolutionize how soldiers are equipped for warfare. Aptly, the weapon was named RAMBO, which stands for Rapid Additively Manufactured Ballistics Ordnance, and is a modified version of the army's existing M203 underslung grenade launcher, which can used for firearms like the M4A1 carbine and the M16. A major difference is that all of RAMBO's parts, except the springs and fasteners, were produced through additive manufacturing. The production of RAMBO was a six-month collaborative effort by the US Army Manufacturing Technology (ManTech), the US Army Research, Development and Engineering Command (RDECOM), and national 3D printing accelerator America Makes. Read more at 3DPrint.com: http://3dprint.com/167567/3d-printed-grenade-launcher/