Model 166S is packaged as a set. The length of these riser blocks matches BKL models 263 and 301. The additional .765" in height gives the target shooter a more heads up shooting position.
| Tube Diameter: N/A | Mount: Dovetail |
| Riser Height Adds: 0.68" | Overall Length: 1" |
| Base of Riser to Dovetail: 0.76" | Weight: 2.1 oz. |
