Combination-Release holsters are priced about $6.00 more than Thumb-Brake Holsters, unless themed snaps are used then the cost increases a little. An example of a themed snap is the skulls you see on some of the holsters.
Combination- Release Holsters
Ruger Redhawk and Super Redhawk
Below are a pictures of holsters designed specifically for the Ruger Super Redhawk. The Ruger Redhawk fits in the same holsters made for the Super Redhawk. These designs are the same as the Ruger Alaskan, as it is a Super Redhawk, but with longer and slightly tappered barrels. Captions below each picture should list a reference number and the approximate cost.
The Redhawk and Super Redhawk holsters are grouped into a few different categories based on wear and retention designs. The first group are thumb-brake hoslters. They can be made in either a standard/strong hip design or cross-draw styles. Next are the combination-retention holsters. These work like thumb-brake holsters but the retention strap can be completely removed. Further down you'll find pictures of Alaskan holsters with a tactical strap sewn on instead of a belt loop. Tactical designs move the revolver off of the hip moving it down to the upper thigh. Tactical holsters can be order with either a thumb-break or a combination release.
Tactical holsters are the same holsters styles as pictured above with the following exception: Instead of a standard or cross-draw belt loop, a tactical strap is sewn on in their place. This keeps the firearm off of the belt line and places the heel of the revolver closer to the natural relaxed position of the palm of the hand. The tactical holsters are about $40 more than the standard hip or cross-draw holsters. Until I get costs loaded, please call for prices...