We machine these APERTURE STORAGE BLOCKS from solid 6061 Aluminum bar-stock to save weight, then anodize them for a durable, lifetime finish. Marked with the hole diameter of the 5 size apertures we offer, the block keeps them sorted by size for instant identification. Think of it as a "shape sorter" for adults! The edges are all nicely rounded and the holes precision tapped to securely hold the Skinner Aperture. Three Choices: “DELUXE” SKINNER SPECIAL with Aperture Storage Block for $60 BLOCK ALONE, no apertures included $15 (for those who already have apertures) SKINNER SPECIAL - Purchase all 5 Aperture sizes for $50 NO BLOCK included. APERTURE STORAGE BLOCK MACHINED FROM ALUMINUM BAR-STOCK, SMOOTH FINISHED, GOLD ANODIZED TO FOR A NICE CONTRAST. (Compliments our BLACK GOLD sights AND our all BLUE/BLACK sights nicely) We machine our apertures from solid steel bar stock. The holes are precision drilled ROUND holes to allow your eye to work its centering magic. Most Skinner Receiver Sights are shipped with a .096" Aperture. This is a good all-around diameter that allows quick target acquisition and accurate alignment. Some ship with a .125" for more light transmission or if they are farther from the eye. We recommend the .040 (fine) for target shooting in good light and the .155 (large) for dim light hunting. Remember, you can always remove the aperture completely for a .200" "Ghost Ring" effect. This is useful in very dim light and for up-close encounters with dangerous game. Or... Why not have all 5 different size apertures and use them interchangeably as light conditions require? Remember... If crosshairs and fiber optics around the aperture were an advantage, all competition shooters would be using them. But they don't. They use precision round steel holes, just like these. Remember, the goal is to look THROUGH the hole and forget about it. Anything that draws attention to the hole, be it a brass ring or ? is detrimental to accuracy. Our apertures are threaded 12-40 and will fit most other manufactures 7/32-40 sight mounts. "Since I first started making peep sights, I've wanted a good way to store, identify, and carry my aperture choices securely. This lightweight, crisp yet smooth, beautiful storage block is just what the Dr. ordered. We machine these in house, have them beautifully anodized, and they will last a lifetime. No more, "where did I put that???" The correct size hole for varying light conditions is always at your fingertips." Andy
