Mountain Revolver that's had a little work done on it:



In addition to the ports and fiber sight, it's had the trigger
contoured and polished mirror bright, crane detent lockup,
action job including forcing cone recut. It now wears the 500
Magnum grips. The ports do dramatically reduce muzzle flip
but as a result the gun has more straight back push into the
web of my hand. It was getting painful with the harder rubber
but the 500 grips completely took care of that problem. They
are not a perfect fit but work well.

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Nemo