Prairie Dog Etch Engraving on Receiver Side This etch engraving is available in two sizes: Large is about an inch in diameter and fits flat receiver sides. Small is about 3/8 inch in diameter (fits the flair flats of an Encore, the Round of a Bolt Action or the side of a gun Barrel). Our engraving process is a deep chemical etch using a special stencil. It goes approximately .006" deep and requires refinishing afterwards if you order it on a blue gun. Deep etch on stainless surfaces requires no re-finishing. A second option for blued guns is to do a surface etch, which leaves a bare metal (silver) image against the original blue finish. This is not a deep etch and requires care in keeping the bare metal image protected with a light coating of oil. This price is for one engraving... Order quantity two to engrave both sides.