S&W REVOLVER 629, 686, 586, 627, 66, 67, 696, 17, 19, 657, 610, 625, 29, 27 and new
calibre .50. All new models with drilled and tapped frame for S&W scope.
![](http://www.lpasights.com/wp-content/uploads/2018/02/SW-300x145.png)
Overall height of the rear sight to replace has to be between 10-10,5 mm
![](http://www.lpasights.com/wp-content/uploads/2018/02/SW2-300x212.png)
The revolver has to be suitable to accept S&W scope (all new drilled and tapped frame)
![](http://www.lpasights.com/wp-content/uploads/2018/02/SW3-300x208.png)
After having disassembled the standard sight, the TXT has to be fitted on the gun by means of two screws supplied into the blister pack