KNS Precision, Inc. Sight Pack, Fits AR-15/M16, Black Replacement Front Sight Posts - 3 square posts-(.034,.052,.072), 3 round dot posts- (.034,.052,.072), 1 V-notch and Inverted SIGHTPAK This is a post sight assortment for M-16" AR-15" AR-10 and SR-25. All post sight bodies are steel. There are seven sight configurations- 3 square post" 3 round dot post and 1 V-notch and inverted.