Accu-Tac Sled Feet, Anodized Finish, Black Color, Fit all G1 or G2 Accu-Tac Bipods SF-A000 The Accu-Tac Sled Feet are perfect for F-Class users" and soft or flat terrains. The Sled Feet are compatible with all Accu-Tac bipods. They are screwed in and come with the needed hardware for any G1 or G2 bipod models.