Having given up on getting my Ruger MKII drilled and tapped for a rail I ordered a dovetail mount for a Holosun 407. Removing the existing dovetailed rear sight was a challenge.
Next task is to install the mount into the dovetail. The instructions say file the base a few strokes at a time until it can be tapped in if you didn’t have a sight mover. I instead opted for a run to the grocery store for 1 lb of dry ice. Dropped the plate on the chunk of dry ice for a few min, picked up with needle nose pliers and just pushed it into position.
Dry ice will cool a 1/2in dovetail from room temp to shrink it by just over .001.
Presto no hammer required! No dings, no dents, no marred finish
Dovetails the easy way
Re: Dovetails the easy way
Good idea 
That does sound easy 
Bet it's going to be a MAJOR pain in the butt if you ever want to remove it though
That does sound easy Bet it's going to be a MAJOR pain in the butt if you ever want to remove it though
"Sometimes I wonder whether the world is being run by smart people who are putting us on or by imbeciles who really mean it." - Samuel Clemens (aka Mark Twain)
Re: Dovetails the easy way
Nicely done!
One of The Great Mysteries of the firearm industry to me is that a bunch of different manufacturers are making replacement sights for Glocks that typically drift right into the dovetail with some moderate force on the wheel of a sight pusher. . .and seemingly everybody else needs measuring, filing, fitting, and sometimes, the BFH.
Why "This is the spec. Build to it." works for the one and is such a challenge for everything else is a great puzzlement.
One of The Great Mysteries of the firearm industry to me is that a bunch of different manufacturers are making replacement sights for Glocks that typically drift right into the dovetail with some moderate force on the wheel of a sight pusher. . .and seemingly everybody else needs measuring, filing, fitting, and sometimes, the BFH.
Why "This is the spec. Build to it." works for the one and is such a challenge for everything else is a great puzzlement.
WWJMBD?
I believe we should stand on Ceremony. . . while our friends handcuff the sanctimonious little prick and take him away.
I believe we should stand on Ceremony. . . while our friends handcuff the sanctimonious little prick and take him away.
Re: Dovetails the easy way
To add to that, Saint Gaston uses a 47 degree dovetail instead of 45.Bigslug wrote: ↑Wed Sep 06, 2023 12:14 pm Nicely done!
One of The Great Mysteries of the firearm industry to me is that a bunch of different manufacturers are making replacement sights for Glocks that typically drift right into the dovetail with some moderate force on the wheel of a sight pusher. . .and seemingly everybody else needs measuring, filing, fitting, and sometimes, the BFH.
Why "This is the spec. Build to it." works for the one and is such a challenge for everything else is a great puzzlement.
Because, who knows why.
“The shepherd slaughters more of the flock than the wolf ever will.”
Re: Dovetails the easy way
Our tool room at work has a freezer just for dry ice. They use it on bearing races and helicoils (they aren't actually helicoils but I can't remember the name because........ brain)
Re: Dovetails the easy way
Nothing to add, apart from that I realise why we'll never put a man on the moon.
Our grocery stores don't sell dry ice!
seriously mind blown by that.
Our grocery stores don't sell dry ice!
seriously mind blown by that.