Ralph
Raplh is a one from many merchants. You can find him at Gunrunners. He also selling Energy Weapons Blueprint.
Sells the Following Blueprints:
Laser Rifle - 20000
Plasma Pistol - 17500
Plasma Rifle - 25000
Ripper - 7000
Super Sledge - 7500
Super Cattle Prod - 10000
Mega Power Fist - 15000