Mass Effect 1:1 M-6 Carnifex Heavy Pistol

"Highly accurate and lethal sidearm. Effective against armor; weak against shields and biotic barriers. The Carnifex is a favored sidearm of mercenary leaders and Eclipse mercenary tech specialists. An expensive but powerful weapon. Its marketing materials feature a charging krogan with the slogan "Don't you wish a Carnifex was at your side?"

Credits to jessthemullet for the designs. I just put it together using Microsoft 3D Builder. Decided to make a life-sized replica by request. Licensed under the Creative Commons - Attribution - Share Alike license.