B. Search for Liberator_First_3D_Printable_gun and/or DefDistDEFCADMEGAPACKV4.2 (all defense distributed files pack). (won't be hard to find thousands have popped up overnight)
C. Download
D. Enjoy making Obama cry...
He'll throw a hissy-fit instead, and then go get some warm hugs from Reggie .....