How to Install a Ruger Blackhawk Rear Sight Blade

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The Ruger Blackhawk was originally introduced in 1955 as a .357 Magnum revolver, according to Since its introduction, the Ruger Blackhawk has become one of Ruger's best selling revolvers and is chambered for numerous calibers including .357 and .44 magnum, .45 ACP, and .30 carbine among many others. The Ruger Blackhawk has adjustable rear sights for both windage and elevation utilizing a rear sight blade. Install a rear sight blade with precision to ensure that the weapon fires accurately.

Items you will need

  • Flathead screwdriver

  • 1/32 hex key

  • Padded gun vise

Unload the weapon completely. Visually inspect the weapon to ensure no live ammunition is present.

Place the Ruger Blackhawk into a padded gun vise with the rear sight accessible to work.

Compress the rear sight blade spring with a small flathead screwdriver.

Slide the sight blade into the half-moon groove on the rear sight base. Ensure that the rear sight illuminated fork is facing the rear.

Insert a 1/32 hex key into the windage nut on the left side of the sight. Insert the windage screw into its hole on the bottom of the sight blade. Hold the hex key in place. Screw the windage screw until tight.


  • Never attempt maintenance on a loaded firearm.
  • Never point the Ruger Blackhawk at anything that you do not intend to shoot or kill.


  • Fire a group of shots to test your sight windage and elevation after installation. Make adjustments accordin to your shot placement on the target.
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