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.|