The HiViz HRB2007 interchangeable fiber optic replacement front sight fits Ruger Mark I, II, III and IV steel bull-barrel pistols, Ruger 22/45 models with adjustable rear sights (not 22/45 Lite), Ruger Single-Six revolvers with adjustable rear sights, and Browning Buck Mark pistols except Challenge, 5.5 Target and 5.5 Field models. Includes six LitePipes in green, red and white.
The HiViz HRB2007 is an interchangeable fiber optic replacement front sight for select Ruger and Browning rimfire pistols. Its all-steel construction and factory-height design allow use with the factory rear sight. Six interchangeable LitePipes provide green, red and white front-sight color options.
The HRB2007 fits Ruger Mark I, Mark II, Mark III and Mark IV steel bull-barrel pistols. It also fits Ruger 22/45 pistols equipped with an adjustable rear sight, but it does not fit the Ruger 22/45 Lite. Ruger Single-Six revolvers with adjustable rear sights are also compatible.
This HiViz replacement front sight also fits Browning Buck Mark pistols, with the following exclusions: Buck Mark Challenge, 5.5 Target and 5.5 Field models. Confirm the exact Buck Mark model and front-sight configuration before ordering.
The HRB2007 includes six interchangeable LitePipes in green, red and white, along with a key for changing the inserts and a carrying case. The factory-height design is compatible with the factory rear sight.
| Manufacturer | HiViz |
| Model | HRB2007 |
| Sight Position | Front |
| Compatible Firearms | Ruger Mark I, II, III and IV steel bull-barrel pistols; select Ruger 22/45 and Single-Six models; Browning Buck Mark pistols |
| Ruger 22/45 Requirement | Adjustable rear sight; excludes 22/45 Lite |
| Ruger Single-Six Requirement | Adjustable rear sight |
| Browning Buck Mark Exclusions | Challenge, 5.5 Target, 5.5 Field |
| Sight Height | Factory height |
| LitePipe Diameter | 0.090 inch |
| LitePipe Colors | Green, red, white |
| LitePipes Included | Six |
| Construction | All steel |
| Included Accessories | LitePipe-changing key and carrying case |
| UPC | 613485587449 |
Before ordering, verify the barrel type, rear-sight configuration and exact firearm model. The HRB2007 is not a universal replacement for every Ruger Mark, 22/45 or Browning Buck Mark variant.