Brownells Brownells Brownells 75th Anniversary - A Shooting Heritage

Harrison Design ignition sets are manufactured from top grade tool steel to provide precise fit and reliable, consistent function under the most demanding conditions. Each part is wire EDM'd and CNC machined for a precise +/- .0005" tolerance, heat treated to Rc 53 - 56, then honed and mirror polished to give Extreme Service in your pistol. The hammers are slightly narrowed to avoid unwanted contact with the slide or ejector. They have deep serrations to help you keep the hammer under control and all exterior corners are CNC machine beveled to minimize snagging and abrasion. The Concealed Carry hammer with it's "teardrop-shaped" hammer hole has a rowel section (the rounded area with the serrations) that is slightly smaller to the rear and to the underside, making it work correctly and look good on pistols using a beavertail with a reduced-size "tail". It works especially well with the Wilson Combat "Carry" beavertail as well as Springfield beavertails that were paired with their "Delta" hammer. The sear is shaped to minimize excess material, reducing weight. The sear nose features a polished primary angle and breakaway angle. Fully polished surfaces mean smooth operation in the points of contact between the disconnector, sear and hammer

1911, Issue:10, Page:018
Big Book Catalog, Issue:67, Page:112