Can you install a series 70 hammer in a series 80 1911 ? I have a Remington R1 1911 and I want to install a wide spur checkered hammer in it. All the aftermarket hammers that I looked at that have the checkered wide spur design are all 70 series. I really don't want to eliminate the series 80 firing pin block in this Remington, I just want to change out the hammer. So, will a series 70 hammer fit and work properly in a series 80 1911 without doing major modification other that maybe some slight fitting ? Thanks.