GG&G's AR-15 Harris Bipod Adapter is extremely rugged and low profile. Features of the GG&G Bipod Adapter include a stationary standard swivel stud"" a counter sunk locking cross bolt that helps eliminate the possibility of snags"" a clamping side bar that is recessed into the overall body of the adapter to provide a smooth overall appearance"" and solid clamping engagement"" even on undersized or worn dovetails. Most importantly"" the GG&G Harris Bipod Adapter makes full surface contact with the Harris bipod interface which assures a tight fit. Fits Picatinny.