I have an EMP .40 4". It is quickly becoming the answer to the old question "If you could only have one pistol what would it be?" Accurate and reliable without a flaw. I am a lefty and found that the ambi safety was too narrow on the right side and I missed it on a fast out of holster presentation. Called SA, the EMP will take many of the same parts as any 1911. Solution was the installation of a Cylinder and Slide wide ambi safety. It is pretty close to the best pistol I own and I own a good many quality handguns. It gets carried nearly every day.